CN217031696U

CN217031696U - Air conditioner

Info

Publication number: CN217031696U
Application number: CN202220684535.5U
Authority: CN
Inventors: 石丽华; 李晓宇; 蔡良烽; 赵东方; 李亚军
Original assignee: Qingdao Hisense Hitachi Air Conditioning System Co Ltd
Current assignee: Qingdao Hisense Hitachi Air Conditioning System Co Ltd
Priority date: 2022-03-28
Filing date: 2022-03-28
Publication date: 2022-07-22
Anticipated expiration: 2032-03-28

Abstract

The utility model provides an air conditioner, comprising: a heat exchanger comprising at least two refrigerant tubes; a flow splitter comprising a connecting tube and a distributor, the distributor comprising: the full-arc-shaped section is positioned at one end of the distributor, the outer end of the full-arc-shaped section is connected with the connecting pipe, a full-arc-shaped flow channel penetrating through the full-arc-shaped section is arranged in the full-arc-shaped section, the radius of the full-arc-shaped flow channel is gradually decreased from one end close to the connecting pipe to one end far away from the connecting pipe, and the molded line of the inner wall of the full-arc-shaped flow channel is arc-shaped; the outlet section is positioned at the other end of the flow divider and is internally provided with at least two liquid outlet channels, one ends of the liquid outlet channels, which are close to the full-arc-shaped channels, are intersected to form a liquid dividing cavity and a liquid dividing cone positioned at the liquid dividing cavity, the liquid dividing cavity is connected with the full-arc-shaped channels, and one ends of the liquid outlet channels, which are far away from the full-arc-shaped channels, are communicated with the refrigerant pipe; the phenomenon of gas-liquid phase stratification caused by the influence of gravity when the splitter is obliquely installed is effectively weakened, severe vortex quantity change cannot be generated on the surface of the flow channel, and flowing noise is low.

Description

Air conditioner

Technical Field

The utility model belongs to the technical field of air conditioners, and particularly relates to an air conditioner with a flow divider.

Background

At present, the use of air conditioners is more and more common, such as heat pump type air conditioners, a heat exchanger is an important part for exchanging heat in the air conditioner, and the energy efficiency level of the air conditioner is directly determined by the heat exchange performance.

In a refrigeration system, except for the case of a small refrigerating capacity, a heat exchanger generally adopts a multi-path parallel connection mode, so that the optimal flow rate of refrigerant is kept, and meanwhile, the pressure drop of the refrigerant side is controlled within a certain range, so that a flow divider is usually required at an inlet of a heat exchanger body. If the performance of the flow divider is poor, the flow of some flows of the heat exchanger is too small, so that the flows are seriously overheated and the heat exchanger is wasted; meanwhile, the flow of other flows is large, the evaporation of a refrigerant is insufficient, even the problems of air suction and liquid entrainment, poor minimum refrigerating performance, uneven frosting on the surface of a heat exchanger and the like are caused, and the condensation performance is influenced.

The refrigerant generally changes to a gas-liquid two-phase state due to a pressure drop after passing through the throttling element. When the two-phase refrigerant flows through the piping between the outlet of the throttle member and the inlet of the flow divider, depending on the magnitude of the surface tension, the inertial force, and the viscous force, different flow states such as laminar flow, spring flow, annular flow, and mist flow may occur. Wherein only the mist flow can uniformly mix the gas phase and the liquid phase, thereby achieving the effect of uniform flow distribution. In other flow states, the proportion of liquid-phase components below the interior of the flow divider is higher than that of liquid-phase components above the flow divider due to the influence of gravity, when the flow divider is obliquely installed, most of gas-state refrigerants are upwards distributed, most of liquid-state refrigerants are downwards distributed, and finally, liquid distribution is uneven, so that the performance of the heat exchanger is influenced.

In order to solve the problem, the prior art has a structure that a jet ring is added in a distributor to increase the jet velocity of a two-phase refrigerant, so as to improve the distribution uniformity. Compared with the traditional distributor, the scheme can improve the distribution uniformity to a certain extent, but still has the following problems: (1) the existence of the jet ring can only improve the local jet speed of the refrigerant when the refrigerant passes through the jet ring, and the refrigerant enters the distribution cavity with larger space again after passing through the jet ring, so that the high flow speed of the refrigerant at the position of the liquid separation cone cannot be ensured, and the problem of poor distribution uniformity still exists under the condition of low-frequency operation of the compressor; (2) the jet ring belongs to an embedded installation mode, a gap exists between the jet ring and the distribution cavity, and when the distributor is obliquely installed, the center of the jet hole and the top of the liquid separating cone cannot be on the same axis, so that the refrigerant is easy to bias when impacting the liquid separating cone; (3) the jet ring is in a structure form of a sudden shrinkage and a sudden expansion, and when refrigerant at the inlet of the distributor impacts the jet ring, flow noise is obviously increased. (4) And multiple times of welding are needed, the welding directions are inconsistent, and the welding process is complex. Accordingly, an air conditioner having a flow divider is provided.

Disclosure of Invention

The present invention is directed to solving, at least to some extent, one of the technical problems in the related art. For this purpose, the first and second air-conditioning systems,

according to an embodiment of the present disclosure, there is provided an air conditioner including:

a heat exchanger comprising at least two refrigerant tubes;

a flow splitter comprising a connecting tube and a distributor, the distributor comprising:

the full-arc-shaped section is positioned at one end of the distributor, the outer end of the full-arc-shaped section is connected with the connecting pipe, a full-arc-shaped flow channel penetrating through the full-arc-shaped section is arranged in the full-arc-shaped section, the radius of the full-arc-shaped flow channel is gradually reduced from one end close to the connecting pipe to one end far away from the connecting pipe, and the molded line of the inner wall of the full-arc-shaped flow channel is arc-shaped;

the outlet section is located the other end of distributor and its interior be formed with two at least play liquid flow ways, it is close to go out the liquid flow way one end intersection that full arc runner formed into the sap cavity and be located divide the liquid separation awl of sap cavity department, divide the sap cavity with full arc runner is connected, it keeps away from to go out the liquid flow way the one end of full arc section with refrigerant pipe intercommunication.

The total arc-shaped flow channel is designed to gradually decrease, so that two-phase refrigerants can gradually accelerate when flowing in the total arc-shaped flow channel, the maximum flow speed is reached at the tail end of the total arc-shaped flow channel, the two-phase refrigerants reaching the maximum flow speed can be distributed to each liquid outlet flow channel after impacting the liquid separating cone, the gas-liquid phase layering phenomenon caused by the influence of gravity when the flow divider is obliquely installed can be effectively weakened, the problems of space occupation and manufacturing process caused by the fact that the existing flow divider needs to be vertically placed are greatly relieved, the overall size of a heat exchanger assembly is reduced, and the manufacturing efficiency can be improved due to the fact that the flow divider does not need to be installed in a special direction; the molded line of the inner wall of the full-arc-shaped flow channel is designed to be arc-shaped, so that the two-phase refrigerant cannot encounter an obstacle structure of sudden shrinkage and sudden expansion in the acceleration process, the surface of the flow channel cannot generate severe vortex quantity change, and the flowing noise is low.

According to the embodiment of the disclosure, the central axis of the full arc-shaped flow channel is in the same straight line with the liquid separating cone, so that two-phase refrigerants reaching the maximum flow velocity can be uniformly distributed to each liquid outlet flow channel after impacting the liquid separating cone.

According to the embodiment of the disclosure, the central axes of the liquid outlet channels are intersected at one point, and the point is positioned on the central axis of the full arc-shaped channel, so that the two-phase refrigerant reaching the maximum flow velocity can be uniformly distributed to each liquid outlet channel after impacting the liquid separating cone.

According to the embodiment of the disclosure, the liquid outlet flow channels are distributed along the circumference around the liquid separating cone, and the circle center of the circumference is located on the central axis of the full arc flow channel, so that the structure is attractive, the design is convenient, and the uniform flow distribution is convenient.

According to the embodiment of the disclosure, the diameter of one end of the connecting pipe connected with the full arc-shaped flow passage is consistent with the inner diameter of the connecting pipe or smaller than the inner diameter of the connecting pipe, and the diameter of one end of the connecting pipe connected with the full arc-shaped flow passage is consistent with the inner diameter of the connecting pipe, so that the influence of uneven connection on the flowing of the refrigerant can be avoided.

According to this disclosed embodiment, full segmental arc insert in the connecting pipe with the connecting pipe is connected, avoids producing the influence and convenient welding when the welding to the structure of full segmental arc runner, avoids upset shunt.

According to the embodiment of the disclosure, the inner wall of the connecting pipe is provided with the limiting protrusion, the full arc-shaped section is inserted into the connecting pipe, the outer end of the full arc-shaped section is abutted against the limiting protrusion, the positioning effect can be achieved, and the phenomenon that the full arc-shaped section moves in the connecting pipe is avoided.

According to the embodiment of the disclosure, one end of the connecting pipe, which is connected with the full arc-shaped section, is outwards turned over to form a connector, and the full arc-shaped section penetrates through the connector to be inserted into the connecting pipe, so that the full arc-shaped section can be conveniently inserted into the connecting pipe.

According to the embodiment of the disclosure, one end of the liquid outlet flow channel, which is far away from the full-arc flow channel, is outwards expanded to form a liquid outlet, the refrigerant pipe or the communicating pipe connected with the refrigerant pipe is inserted into the liquid outlet and is connected with the outlet section, so that the connection of the liquid outlet flow channel and the refrigerant pipe or the communicating pipe connected with the refrigerant pipe is facilitated.

According to the embodiment of the disclosure, the outer wall of the full arc-shaped section is provided with the connecting step, the full arc-shaped section is inserted into the connecting pipe, and when the outer end of the full arc-shaped section is abutted against the limiting protrusion, the end wall of the connecting pipe, which is connected with one end of the full arc-shaped section, has a certain gap with the connecting step, so that the connection is convenient.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic diagram of an air conditioner according to an embodiment of the present disclosure;

FIG. 2 is a partial view of an air conditioner according to an embodiment of the present disclosure;

FIG. 3 is a perspective view of a flow diverter according to an embodiment of the present disclosure;

FIG. 4 is a top view of a flow diverter according to an embodiment of the present disclosure;

FIG. 5 is a perspective view of a connecting tube according to an embodiment of the present disclosure;

FIG. 6 is a front view of a connecting tube according to an embodiment of the present disclosure;

FIG. 7 is a cross-sectional view of a connecting tube according to an embodiment of the present disclosure;

FIG. 8 is a perspective view of a dispenser according to an embodiment of the present disclosure;

FIG. 9 is a front view of a dispenser according to an embodiment of the present disclosure;

FIG. 10 is a cross-sectional view of a dispenser according to an embodiment of the present disclosure;

FIG. 11 is a perspective view of another perspective of a dispenser according to an embodiment of the present disclosure;

FIG. 12 is a cross-sectional view of a dispenser according to an embodiment of the present disclosure;

FIG. 13 is a cross-sectional view of a flow diverter according to an embodiment of the present disclosure;

FIG. 14 is a schematic view of a diverter tilt mount according to an embodiment of the present disclosure;

FIG. 15 is a schematic view of a horizontal installation of a flow diverter according to an embodiment of the present disclosure.

In the above figures: a heat exchanger 1; an evaporator 11; a condenser 12; a compressor 2; a throttle member 3; a four-way reversing valve 4; a flow divider 5; a connection pipe 51; a stopper protrusion 511; a connection port 512; a dispenser 52; a full arc segment 521; a full arc runner 5211; a connection step 5212; an outlet section 522; a liquid outlet passage 5221; a liquid outlet 52211; a liquid separation chamber 5222; a separatory cone 5223.

Detailed Description

The utility model is described in detail below by way of exemplary embodiments. It should be understood, however, that elements, structures and features of one embodiment may be beneficially incorporated in other embodiments without further recitation.

The air conditioner performs a refrigeration cycle of the air conditioner by using a compressor, a condenser, an expansion valve, and an evaporator. The refrigeration cycle includes a series of processes involving compression, condensation, expansion, and evaporation, and supplies refrigerant to the air that has been conditioned and heat-exchanged.

The compressor compresses a low-temperature and low-pressure refrigerant gas and discharges a high-temperature and high-pressure refrigerant gas. The discharged refrigerant gas flows into the condenser. The condenser condenses the compressed refrigerant into a liquid phase, and the heat is released to the ambient environment through the condensation process.

The expansion valve expands the liquid-phase refrigerant in a high-temperature and high-pressure state condensed in the condenser into a low-pressure liquid-phase refrigerant. The evaporator evaporates the refrigerant expanded in the expansion valve, and returns the refrigerant gas in a low-temperature and low-pressure state to the compressor. The evaporator can achieve a cooling effect by heat-exchanging with a material to be cooled using latent heat of evaporation of a refrigerant. The air conditioner can adjust the temperature of the indoor space throughout the cycle.

Referring to fig. 1-15, the present invention provides an air conditioner, and referring to fig. 1, the air conditioner mainly includes a heat exchanger 1, a compressor 2, a throttling component 3 and a four-way reversing valve 4, wherein the heat exchanger may be an evaporator 11 and a condenser 12. The evaporator 11 is a device for outputting cold energy, and has the function of evaporating the refrigerant liquid flowing in through the throttling component 3 to absorb the heat of the cooled object, so as to achieve the purpose of refrigeration; the condenser 12 is a device for outputting heat, and the heat absorbed from the evaporator 11 and the heat converted by the work consumed by the compressor 2 are taken away by a cooling medium in the condenser to achieve the purpose of heating; and the four-way reversing valve 4 is used for switching the refrigerating and heating modes. The evaporator and the condenser are important parts for heat exchange in the air conditioner, and the energy efficiency level of the air conditioner is directly determined by the heat exchange performance of the evaporator and the condenser.

Under the refrigeration working condition in summer, the indoor heat exchanger is used as an evaporator 11, the outdoor heat exchanger is used as a condenser 12, and low-pressure two-phase refrigerant (a mixture of liquid-phase refrigerant and gas-phase refrigerant) in the evaporator 11 absorbs heat from indoor air to lower the indoor temperature; the refrigerant is compressed into a high-temperature and high-pressure gas refrigerant after being sucked by the compressor 2; the high temperature, high pressure gas refrigerant then releases heat energy to the outdoor environment at the condenser 12; finally, the refrigerant is throttled by the throttle member 3, becomes a low-temperature low-pressure two-phase refrigerant, and enters the evaporator 11 again, and the above cycle is repeated.

When heat is supplied in winter, the air conditioner changes working condition modes through the four-way reversing valve 4, at the moment, the outdoor heat exchanger is used as the evaporator 11, the indoor heat exchanger is used as the condenser 12: the low-pressure two-phase refrigerant (a mixture of liquid-phase refrigerant and vapor-phase refrigerant) in the evaporator 11 absorbs heat from the low-temperature environment; the gas refrigerant is sucked by the compressor 2 and then compressed into a high-temperature high-pressure gas refrigerant; then, the high-temperature high-pressure gas refrigerant releases heat energy to the indoor environment in the condenser 12, so that the indoor temperature is increased, and the self temperature is reduced; finally, the refrigerant is throttled by the throttle member 3, becomes a low-temperature low-pressure two-phase refrigerant, and enters the evaporator 11 again, and the above cycle is repeated.

The heat exchanger 1 includes a plurality of fins arranged side by side and a plurality of refrigerant tubes arranged on the plurality of fins in a penetrating manner, and the plurality of refrigerant tubes may be in a parallel connection manner.

Referring to fig. 2, the air conditioner further includes a flow divider 5 communicating with refrigerant pipes of the heat exchanger, through which refrigerant is uniformly distributed into the plurality of refrigerant pipes, and a flow dividing pipe 6 provided on the heat exchanger. If the performance of the flow divider is poor, the flow of some flows of the heat exchanger is too small, so that the flows are seriously overheated and the heat exchanger is wasted; meanwhile, the flow of other flows is large, the evaporation of a refrigerant is insufficient, even the problems of air suction and liquid entrainment, poor minimum refrigerating performance, uneven frosting on the surface of a heat exchanger and the like are caused, and the condensation performance is influenced.

Therefore, a flow divider is designed, and referring to fig. 3 to 4, the flow divider 5 includes a connection pipe 51 and a distributor 52, one end of the distributor 52 is connected to the connection pipe, and the other end of the distributor 52 is connected to a refrigerant pipe, wherein the other end of the distributor 52 is connected to at least two refrigerant pipes, and referring to fig. 5 to 7, the connection pipe 51 may be a U-shaped pipe.

Referring to fig. 8-13, the distributor 52 includes a fully arcuate section 521 and an outlet section 522, wherein the fully arcuate section 521 is located at one end of the distributor and the outlet section 522 is located at the other end of the distributor. The outer end of the full arc segment 521 is connected to one end of a connecting tube. The full arc-shaped section 521 is provided with a full arc-shaped flow passage 5211 penetrating through the full arc-shaped section, the radius of the full arc-shaped flow passage 5211 gradually decreases from the end close to the connecting pipe to the end far away from the connecting pipe, and the molded line of the inner wall of the full arc-shaped flow passage is arc-shaped.

At least two liquid outlet channels 5221 are formed in the outlet section 522, one ends of the liquid outlet channels, which are close to the full arc-shaped channels, are intersected to form a liquid dividing cavity 5222 and a liquid dividing cone 5223 located at the liquid dividing cavity, the liquid dividing cavity is connected with the full arc-shaped channels, the connection part of the liquid dividing cavity and the full arc-shaped channels is in smooth transition, and one ends, which are far away from the full arc-shaped channels, of the liquid outlet channels 5221 are communicated with the refrigerant pipe.

The design of the full arc-shaped flow channel is gradually decreased, so that two-phase refrigerants can be gradually accelerated when flowing in the full arc-shaped flow channel, the maximum flow speed is reached at the tail end of the full arc-shaped flow channel, the two-phase refrigerants reaching the maximum flow speed can be distributed to each liquid outlet flow channel after impacting the liquid separating cone, the gas-liquid phase layering phenomenon caused by the influence of gravity when the flow divider is obliquely installed can be effectively weakened, the problems of space occupation and manufacturing process caused by the fact that the existing flow divider needs to be vertically placed are greatly relieved, the overall size of a heat exchanger assembly is reduced, the manufacturing efficiency can be improved due to the fact that the two-phase refrigerants do not need to be specially installed in the direction, the two-phase refrigerants are always accelerated in the full arc-shaped flow channel, the acceleration time is sufficient, the two-phase refrigerants are fully mixed, and the distribution uniformity is favorably improved; the molded line of the inner wall of the full arc-shaped flow channel is designed to be arc-shaped, two-phase refrigerants cannot meet the obstacle structure of sudden shrinkage and sudden expansion in the acceleration process, severe vortex quantity change cannot be generated on the surface of the flow channel, and flowing noise is low. Fig. 14 is a schematic view of the diverter mounted obliquely, and fig. 15 is a schematic view of the diverter mounted horizontally.

Referring to fig. 12, the central axis L1 of the full arc-shaped flow passage 5211 is collinear with the liquid separating cone 5223, and the central axis L2 of the liquid outlet flow passage intersects at a point, which is located on the central axis of the full arc-shaped flow passage, so that the two-phase refrigerant reaching the maximum flow velocity can be uniformly distributed to each liquid outlet flow passage after impacting the liquid separating cone. The liquid outlet flow channels are distributed along the circumference around the liquid separating cone, and the circle center of the circumference is positioned on the central axis of the full arc flow channel, so that the structure is attractive, the design is convenient, and the uniform flow distribution is convenient. An included angle between a central axis L1 of the full arc-shaped flow passage 5211 and a central axis L2 of the liquid outlet flow passage is alpha, wherein alpha is any value of 10-50 degrees.

Referring to fig. 10, the liquid outlet passage 5221 is formed by expanding one end of the liquid outlet passage 5221 away from the full arc-shaped passage to form a liquid outlet 52211, wherein the liquid outlet passage may be gradually expanded or may be suddenly expanded to form a stepped structure. The refrigerant pipe or the communicating pipe connected with the refrigerant pipe can be inserted into the liquid outlet to be connected with the outlet section, can be fixedly connected in a welding mode, can be welded at the intersection of the liquid outlet and the refrigerant pipe or the communicating pipe connected with the refrigerant pipe, and is welded, and the liquid outlet is arranged to facilitate the connection of the liquid outlet flow channel and the refrigerant pipe or the pipe connected with the refrigerant pipe.

Specifically, the outer end of the full arc-shaped section 521 is fixedly connected with one end of the connecting pipe. In full segmental arc 521 inserted the connecting pipe, then with full segmental arc and connecting pipe fixed connection, wherein can be through welded mode make full segmental arc and connecting pipe be connected, the setting is inserted in the connecting pipe, avoids influencing the structure of full segmental arc runner and convenient welding when the welding, avoids upset shunt.

The diameter of the one end of connecting pipe is connected to full arc runner is unanimous with the internal diameter of connecting pipe or is less than the internal diameter of connecting pipe, sets up the diameter of the one end of full arc runner connecting pipe and unanimous influence that can avoid the junction unevenness to the refrigerant flow with the internal diameter of connecting pipe.

Referring to fig. 5-7 and 13, the inner wall of the connecting tube is provided with a limiting protrusion 511, and the full arc section is inserted into the connecting tube and the outer end of the full arc section abuts against the limiting protrusion, so that the positioning function can be achieved, and the movement in the connecting tube can be avoided.

The outer wall of the full arc-shaped section is provided with a connecting step 5212, when the full arc-shaped section is inserted into the connecting pipe and the outer end of the full arc-shaped section is abutted against the limiting protrusion, the end wall of one end of the connecting pipe, which is connected with the full arc-shaped section, has a certain gap with the connecting step. The outer ends of the connecting steps and the connecting pipes are fixedly connected, the connecting steps and the connecting pipes can be connected in a welding mode, solder can be placed in gaps between the end walls of the connecting steps and the connecting pipes, then welding is carried out, and the connecting steps and the gaps are arranged to be conveniently connected.

Referring to fig. 5-7, one end of the connecting pipe connected to the full arc-shaped section is turned outwards to form a connecting port 512, and the full arc-shaped section passes through the connecting port and is inserted into the connecting pipe, so that the full arc-shaped section is conveniently inserted into the connecting pipe.

The outer diameter of the connecting pipe is D0, wherein D0 is any value of 6.35-15.88mm, the inner diameter of the connecting pipe is D1, the wall thickness of the connecting pipe is (D0-D1)/2, the wall thickness of the connecting pipe is any value of 0.6-1.8mm, D1 is larger than or equal to D2, the diameter of the end, away from the connecting pipe, of the full-arc runner is D3, D3 is any value of 0.5-10mm, the length of the full-arc section is H1, H1 can be 0< H1 is smaller than or equal to 20mm, the length of the full-arc section inserted into the connecting pipe is H2, and H2 can be any value of 8-10 mm. The diameter of the liquid outlet flow passage is D4, the diameter of the liquid outlet is D5, wherein D5 is 4mm, 4.76mm or 6.35mm, and (D5-D4)/2 is the wall thickness of the liquid outlet flow passage, and the wall thickness of the liquid outlet flow passage is any value of 0.6-1.8 mm.

One example is: the inner diameter of the connecting pipe is 12mm, the diameter D2 of the full arc runner near one end of the connecting pipe is 12mm, the diameter of the full arc runner near one end of the connecting pipe is D3 mm and 4mm, the length of the full arc segment is 15mm, the diameter of the liquid outlet runner is 3mm, and the angle alpha is 20 degrees.

Under the normal condition, the higher the flow velocity is in a certain range, the better the atomization effect is, and therefore, the diameter of the outlet side of the full arc section is properly reduced, which is beneficial to improving the flow distribution uniformity. Because the diameter of the outlet side of the full arc section is reduced, the throttling function is achieved, and therefore a throttling mechanism, such as a capillary tube or an expansion valve, can be replaced to some extent, and the effect of reducing the cost is achieved.

In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.

The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and shall cover the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.

Claims

1. An air conditioner, comprising:

a heat exchanger comprising at least two refrigerant tubes;

the full-arc-shaped section is positioned at one end of the distributor, the outer end of the full-arc-shaped section is connected with the connecting pipe, a full-arc-shaped flow passage penetrating through the full-arc-shaped section is arranged in the full-arc-shaped section, the radius of the full-arc-shaped flow passage is gradually decreased from one end close to the connecting pipe to one end far away from the connecting pipe, and the molded line of the inner wall of the full-arc-shaped flow passage is arc-shaped;

2. The air conditioner according to claim 1, wherein the central axis of the full arc-shaped flow channel is collinear with the separating cone.

3. The air conditioner as claimed in claim 1 or 2, wherein the central axes of the liquid outlet flow paths intersect at a point which is located on the central axis of the full arc flow path.

4. The air conditioner according to claim 1 or 2, wherein said liquid outlet channel is circumferentially distributed around said liquid separating cone, and the center of said circumference is located on the central axis of said full arc channel.

5. The air conditioner as claimed in claim 1, wherein a diameter of one end of the full arc shaped flow passage connected to the connection pipe is identical to or smaller than an inner diameter of the connection pipe.

6. The air conditioner according to claim 1 or 5, wherein the full arc segment is inserted into the connection pipe to be connected with the connection pipe.

7. The air conditioner according to claim 6, wherein a limiting protrusion is provided on an inner wall of the connecting pipe, the full arc-shaped section is inserted into the connecting pipe, and an outer end of the full arc-shaped section abuts against the limiting protrusion.

8. The air conditioner according to claim 6, wherein an end of said connecting pipe connected to said full arc-shaped section is folded outwardly to form a connection port, and said full arc-shaped section is inserted into said connecting pipe through said connection port.

9. The air conditioner according to claim 1, wherein an end of the liquid outlet flow path remote from the full arc-shaped flow path is expanded outward to form a liquid outlet, and the refrigerant pipe or a communication pipe connected to the refrigerant pipe is inserted into the liquid outlet and connected to the outlet section.

10. The air conditioner according to claim 7, wherein a connection step is provided on an outer wall of the full arc-shaped section, and when the full arc-shaped section is inserted into the connection pipe and an outer end thereof abuts against the limit protrusion, an end wall of the connection pipe connecting one end of the full arc-shaped section has a certain gap with the connection step.