CN217979990U - Collecting pipe assembly, heat exchanger and air conditioner - Google Patents

Abstract

The application relates to the technical field of air conditioning, and discloses a collecting pipe assembly, a heat exchanger and an air conditioner. The header assembly includes a header and a shunt tube. The collecting pipe is provided with a refrigerant inlet, an accommodating cavity and a plurality of channels, the accommodating cavity is communicated with the refrigerant inlet, and a plurality of branch ports are formed in the accommodating cavity; a plurality of cavities which are isolated from each other are formed in the shunt pipe, and each channel is correspondingly communicated with one cavity and one shunt opening. The application provides a collecting pipe subassembly, heat exchanger and air conditioner can transport the refrigerant to the cavity that corresponds in through the passageway, can solve the problem of refrigerant reposition of redundant personnel difficulty, and heat exchange efficiency is high.

Description

Collecting pipe assembly, heat exchanger and air conditioner

Technical Field

The application relates to the technical field of air conditioning, in particular to a collecting pipe assembly, a heat exchanger and an air conditioner.

Background

In the related art, the heat exchange efficiency of the heat exchanger of the air conditioner affects the heating or cooling effect, and uneven refrigerant distribution in the heat exchanger can directly affect the heat exchange efficiency of the heat exchanger.

SUMMERY OF THE UTILITY MODEL

In view of this, embodiments of the present application are intended to provide a collecting pipe assembly, a heat exchanger and an air conditioner to solve the problem of uneven refrigerant distribution.

In order to achieve the above purpose, the technical solution of the embodiment of the present application is implemented as follows:

an embodiment of the present application discloses a header assembly on one hand, including:

the collecting pipe is provided with a refrigerant inlet, a containing cavity and a plurality of channels, the containing cavity is communicated with the refrigerant inlet, and the containing cavity is provided with a plurality of branch ports;

the shunt tubes are internally provided with a plurality of cavities which are isolated from each other, and each channel is correspondingly communicated with one cavity and one shunt opening.

In one embodiment, the shunt tube includes a tube body and a plurality of partitions arranged at intervals in an axial direction of the tube body to divide a space in the tube body into the plurality of cavities.

In one embodiment, the number of the cavities is the same as that of the flow dividing ports; the areas of the shunting ports are equal; at least one of the channels is of helical configuration.

In one embodiment, a plurality of the cavities are arranged in layers in the up-down direction, and the volume of the cavity at the bottommost layer is larger than the volume of each of the other cavities.

In an embodiment, the plurality of branch flow ports are circumferentially arranged on the bottom surface of the accommodating cavity at intervals, and the refrigerant inlets are arranged on the peripheral side surface of the collecting pipe and extend to the central area of the accommodating cavity.

In one embodiment, a groove is formed on the peripheral side surface of one of the collecting pipe and the flow dividing pipe, a fixing part is arranged on the peripheral side surface of the other one of the collecting pipe and the flow dividing pipe, the fixing part is accommodated in the groove, and the fixing part is in contact with and fixed to the groove.

The embodiment of the application discloses a heat exchanger on the one hand, includes:

the manifold assembly of any of the above embodiments;

the heat exchange tubes are internally provided with a refrigerant flow channel, the heat exchange tubes are arranged at intervals along the axial direction of the flow dividing pipe, and each cavity is communicated with at least one heat exchange tube;

the header, the header with the shunt tubes interval sets up, the header is formed with the refrigerant export, the pressure manifold subassembly passes through the heat exchange tube with the refrigerant export intercommunication.

In one embodiment, a plurality of separated chambers are formed in the header, the separated chambers and the cavities are all arranged in a layered manner in the vertical direction, the refrigerant outlet is formed in the separated chamber at the bottommost layer, at least one cavity is a return chamber, and the return chamber is communicated with two adjacent separated chambers through a plurality of heat exchangers.

In one embodiment, the number of the separation cavities is less than the number of the cavities; the heat exchanger comprises fins which are arranged on the outer surface of the heat exchange tube.

In another aspect, an embodiment of the present application discloses an air conditioner, including the heat exchanger in any one of the above embodiments.

The embodiment of the application discloses pressure manifold subassembly, heat exchanger and air conditioner transports the refrigerant to the cavity that corresponds in through the passageway, can realize the reposition of redundant personnel of refrigerant, has solved the problem of refrigerant distribution difficulty, and heat exchange efficiency is high.

Drawings

Fig. 1 is a schematic structural diagram of a header assembly according to an aspect of an embodiment of the present disclosure, in which a heat exchange tube is inserted into a cavity of a bypass tube;

FIG. 2 is a schematic cross-sectional view of FIG. 1, wherein the direction of cut is from top to bottom;

FIG. 3 is a schematic view of the structure of FIG. 1 from another perspective;

FIG. 4 is a schematic structural diagram of a heat exchanger according to another aspect of the present disclosure;

fig. 5 is a schematic sectional view of fig. 4, in which the cutting direction is from top to bottom.

Description of the reference numerals

A heat exchanger 100; a header assembly 1; a header 11; a refrigerant inlet 11a; the accommodation chamber 11b; a channel 11c; a diversion port 11d; a groove 11e; a shunt tube 12; a cavity 12a; the first cavity 12a1; the second cavity 12a2; the third cavity 12a3; a fourth cavity 12a4; a fifth cavity 12a5; a sixth cavity 12a6; a fixed part 12b; a tube body 121; a partition 122; a heat exchange pipe 2; a refrigerant flow passage 2a; a header 3; a separation chamber 3a; a first compartment 3a1; a second compartment 3a2; a third compartment 3a3; a refrigerant outlet 3b; and a fin 4.

Detailed Description

It should be noted that, in the present application, technical features in examples and embodiments may be combined with each other without conflict, and the detailed description in the specific embodiment should be understood as an explanation of the gist of the present application and should not be construed as an improper limitation to the present application.

The present application will be described in further detail with reference to the following drawings and specific embodiments. The descriptions of "first," "second," etc. in the embodiments of the present application are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly including at least one feature. In the description of the embodiments of the present application, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In one aspect, referring to fig. 1-3, a manifold assembly 1 includes a manifold 11 and shunt tubes 12. The header 11 is formed with a refrigerant inlet 11a, a housing chamber 11b, and a plurality of passages 11c. Illustratively, the shape of the header 11 is not limited, and may be a cylinder, a rectangular parallelepiped, or other polyhedron.

The accommodation chamber 11b communicates with the refrigerant inlet 11 a. Thus, the refrigerant enters the accommodating chamber 11b from the refrigerant inlet 11a, and the refrigerant can be temporarily stored in the accommodating chamber 11 b. The accommodation chamber 11b is formed with a plurality of branch ports 11d.

For example, the shape of the diversion port 11d is not limited, the diversion port 11d may be a circle, a square or another polygon, and the diversion port 11d may be disposed in the accommodation chamber 11 b.

A plurality of cavities 12a are formed in the shunt tube 12, and each channel 11c is correspondingly communicated with one cavity 12a and one shunt opening 11d. Therefore, the refrigerant can be divided into the channels 11c through the dividing ports 11d and then flows into the correspondingly communicated cavities 12a, so that the refrigerant is uniformly distributed, and the heat exchange efficiency is improved.

This embodiment is through set up in pressure manifold 11 and hold chamber 11b, reposition of redundant personnel mouth 11d and passageway 11c, then transport the refrigerant to the cavity 12a of one-to-one through passageway 11c in, can realize the reposition of redundant personnel of refrigerant, has solved the problem of refrigerant distribution difficulty, improves heat exchange efficiency.

For example, the accommodating chamber 11b may be disposed above the channel 11c to temporarily store the refrigerant. The refrigerant inlet 11a may be formed at an upper end of the header 11 to facilitate the refrigerant to flow into the header 11 from top to bottom, and the plurality of passages 11c may be formed in the header 11.

In an embodiment, referring to fig. 3, a plurality of branch flow ports 11d are circumferentially spaced on the bottom surface of the accommodating cavity 11 b. Illustratively, the number of the branch flow ports 11d is not limited, for example, the number of the branch flow ports 11d may be 6, and 6 branch flow ports 11d are arranged on the bottom surface of the accommodating chamber 11b at equal intervals circumferentially around the axis of the header 11. The refrigerant inlet 11a is provided on the peripheral side of the header 11 and extends to the central region of the receiving chamber 11 b. Illustratively, the refrigerant inlet 11a has a tubular structure, and one end of the refrigerant inlet 11a is disposed at a position on the peripheral side surface of the header 11 near the upper end surface, and the other end extends to an upper center position in the accommodating cavity 11 b. Like this, the refrigerant can get into through refrigerant entry 11a to in holding the central top in the chamber 11b with refrigerant discharge to holding chamber 11b, the refrigerant falls to the bottom surface central zone who holds chamber 11b at the action of gravity, and in the reposition of redundant personnel flowed into each diffluence exit 11d at last, realized the impartial distribution of refrigerant, heat transfer coefficient improves, and heat exchange efficiency increases.

The plurality of means includes two and more than two.

In one embodiment, referring to fig. 2, the shunt 12 includes a tube 121 and a plurality of baffles 122, the baffles 122 are spaced along the axial direction of the tube 121 to divide the space in the tube 121 into a plurality of cavities 12a. For example, the shape of the tube 121 is not limited, and may be a cylinder, a rectangular parallelepiped, or other polyhedron. Taking the tube 121 as a cylinder as an example, the tube 121 is a hollow structure, and the partition plates 122 are disposed in the tube 121 at intervals to partition the space of the tube 121 into a plurality of separate cavities 12a, so that the refrigerant can be temporarily stored in the corresponding cavities 12a through the corresponding channels 11c, and is ready for subsequent heat exchange. It should be noted that, the number N of the partition plates 122 and the number M of the channels 11c have a relationship of M = N +1, so that each channel 11c has a corresponding cavity 12a to communicate with each other, the refrigerant is distributed in each cavity 12a, conditions are provided for subsequent heat exchange, and the heat exchange efficiency is improved.

In one embodiment, referring to fig. 2 and 5, at least one channel 11c is a curved structure. Therefore, the tubes are convenient to distribute, mutual interference among the channels 11c is avoided, and the flowing time of the refrigerant in each channel 11c is convenient to balance, so that the flow distribution effect of the refrigerant is improved.

In one embodiment, the number of cavities 12a corresponds to the number of flow-dividing ports 11d. The areas of the respective flow dividing ports 11d are equal. Therefore, each cavity 12a can be provided with the corresponding branch opening 11d, so that the refrigerant can be distributed in each cavity 12a through the branch opening 11d, and the heat exchange efficiency is improved. The refrigerant temporarily stored in the accommodating cavity 11b can enter each branch opening 11d, the structure is simple, and the distribution of the refrigerant can be realized. By setting the areas of the respective branch flow ports 11d to be equal, that is, by setting the flow rates of the refrigerant passing through the respective branch flow ports 11d to be equal, the refrigerant can be equally distributed in the respective passages 11c. At least one channel 11c is of helical configuration. Illustratively, the head end of the channel 11c is connected to the diversion port 11d, the channel 11c may extend spirally downward in the axial direction, and the tail end of the channel 11c extends to communicate with the corresponding cavity 12a. Like this, through setting channel 11c to the heliciform, avoid channel 11c to have sharp corner to influence the refrigerant flow, strengthen the reposition of redundant personnel effect, improve heat exchange efficiency.

It is understood that the area of the flow dividing port 11d herein refers to the area of the flow cross section of the flow dividing port 11d.

The channel 11c is formed in a non-limiting manner, and for example, in one embodiment, the channel 11c may be formed by surrounding a pipe wall of the header 11. In another embodiment, the header 11 is formed with a receiving cavity 11b, and the channel 11c may be a separate hollow tube received in the receiving cavity 11 b.

In one embodiment, referring to fig. 2 and 5, the plurality of cavities 12a are arranged in the up-down direction, and the volume of the cavity 12a at the bottom layer is larger than the volume of each of the other cavities 12a. Illustratively, 5 partition plates 122 are arranged in the tube body 121 at intervals downward to divide the space of the shunt tube 12 into 6 cavities 12a independent from each other along the axial direction, the first cavity 12a1, the second cavity 12a2, the third cavity 12a3, the fourth cavity 12a4, the fifth cavity 12a5 and the sixth cavity 12a6 are sequentially arranged from top to bottom, the volumes of the first 5 cavities 12a may be equal or unequal, but the volume of the sixth cavity 12a6, that is, the volume of the cavity 12a at the bottom layer, needs to be larger than the volumes of the other cavities 12a, so that under the influence of gravity, the bottom layer of the shunt tube 12 may have enough space to temporarily store the refrigerant, thereby avoiding the situation that the refrigerant is accumulated at one place to cause flow blockage, and improving the heat exchange effect.

In an embodiment, referring to fig. 3, a groove 11e is formed on a peripheral side surface of one of the collecting pipe 11 and the shunt pipe 12, a fixing portion 12b is formed on a peripheral side surface of the other one of the collecting pipe 11 and the shunt pipe 12, and the fixing portion 12b is accommodated in the groove 11 e. For example, referring to fig. and taking the shape of the collecting pipe 11 and the dividing pipe 12 as an example, the outer side surface of the collecting pipe 11 may be recessed inwards to form a groove 11e by stamping or the like on the peripheral side surface of the collecting pipe 11, so that the whole groove 11e is substantially U-shaped, and the peripheral side surface of the dividing pipe 12 may be embedded in the groove 11e, which may facilitate the installation of the collecting pipe 11 and the dividing pipe 12 and the subsequent fixed connection of the collecting pipe 11 and the dividing pipe 12, and improve the production efficiency. The fixing portion 12b is fixed in contact with the recess 11 e. For example, the fixing manner of the fixing portion 12b and the groove 11e is not limited, for example, the fixing portion 12b and the edge of the groove 11e may be welded from the outside by welding, so as to improve the connection strength of the fixing portion and the groove, and the risk of pipeline deformation caused by vibration or in the transportation process may be effectively reduced; the fixing portion 12b and the groove 11e can be fixed in a closed connection mode such as gluing and the like to solve the problem of refrigerant leakage, and the safety is high.

In one embodiment, the length of each channel 11c is different. The length of each channel 11c may be designed according to the heat exchange coefficient and the arrangement of the cavities 12a. For example, since the cavities 12a are vertically arranged in the branch pipes 12, the length of the passages 11c needs to be increased in order to ensure that the refrigerant can enter the corresponding cavities 12a through the corresponding passages 11c.

An aspect of an embodiment of the present application provides a heat exchanger. Illustratively, the heat exchanger 100 may be an evaporator and/or a condenser.

Referring to fig. 4 and 5, the heat exchanger 100 includes a header assembly 1, a plurality of heat exchange tubes 2 and a header 3 in any one of the above embodiments. A refrigerant flow passage 2a is formed in the heat exchange tube 2. Exemplarily, heat exchange tube 2 can be flat pipe, is formed with a plurality of refrigerant runners 2a in the flat pipe, and a plurality of refrigerant runners 2a set up along the width direction interval of flat pipe. The refrigerant can exchange heat with the hot air flow to be exchanged when passing through the refrigerant flow channel 2a, so as to enhance the heat exchange effect.

A plurality of heat exchange tubes 2 are arranged at intervals along the axial direction of the shunt tube 12. Thus, the plurality of heat exchange tubes 2 are arranged on the flow dividing tube 12 along the axial direction, so that the heat exchange area with the hot air flow to be exchanged can be increased, and the heat exchange efficiency is improved.

Each cavity 12a communicates with at least one heat exchange tube 2. It can be understood that the number of the heat exchange tubes 2 communicated with each cavity 12a is set according to the capacity of the refrigerant in the cavity 12a. Illustratively, the number of the refrigerants flowing into the cavity 12a is relatively large, and the heat exchange tubes 2 are correspondingly provided with a plurality of refrigerant accumulation parts, so that the heat exchange efficiency can be improved. The cavity 12a has relatively less refrigerant, and correspondingly, a few heat exchange tubes 2 are arranged.

The manifold 3 and the shunt tubes 12 are spaced apart. Illustratively, referring to fig. 4 or 5, the headers 3 and the manifolds 12 can be spaced apart horizontally. The header 3 is formed with a refrigerant outlet 3b, and the header assembly 1 communicates with the refrigerant outlet 3b through the heat exchange tube 2. Exemplarily, the refrigerant outlet 3b is arranged at the lower side of the header 3, and the header assembly 1 is communicated with the refrigerant outlet 3b through the heat exchange tube 2, so that the refrigerant subjected to heat exchange can be discharged out of the heat exchanger 100 in time, and the heat exchanger is simple in structure and high in efficiency.

The heat exchanger 100 provided by the embodiment can effectively reduce the filling amount of the refrigerant through the heat exchange tube 2 with the refrigerant flow channel 2a, is beneficial to environmental protection, can also improve the heat exchange efficiency of the heat exchanger 100, and reduces the size of the heat exchanger 100, thereby reducing the development cost of products. The heat exchange tube 2 is used for connecting the collecting tube component 1 and the collecting tube 3 into a whole, so that the whole structure is simple and the installation is convenient; the refrigerant outlet 3b is formed in the header 3, so that the refrigerant after heat exchange is timely discharged to the heat exchanger 100, the heat exchange effect is prevented from being influenced by accumulation, and the heat exchange efficiency is improved.

It can be understood that the refrigerant flow channel 2a may be a micro channel, that is, the size of the flow cross section of the refrigerant flow channel 2a is small, and the specific size of the flow cross section of the refrigerant flow channel 2a may be designed according to the prior art, which is not described herein again.

In one embodiment, a plurality of first ports are disposed on the wall of the shunt tube 12, the plurality of first ports are arranged at intervals along the axial direction of the shunt tube 12, and the first ports are communicated with the cavity 12a; the tube wall of the header 3 is provided with a plurality of second interfaces, and the heat exchange tubes 2 are respectively connected with the first interfaces and the second interfaces so as to communicate the cavity 12a and the separation cavity 3a. Exemplarily, the first interface and the second interface can be sockets, the heat exchange tube 2 can be plugged into the sockets, and then the joint of the heat exchange tube 2 and the sockets is sealed by welding or gluing, so as to avoid refrigerant leakage. For example, the first connector and the second connector can also be threaded openings, internal threads are arranged in the first connector and the second connector, external threads are arranged at two ends of the heat exchange tube 2, and the connection strength between the heat exchange tube 2 and the shunt tube 12 and the collector tube 3 is improved in a thread screwing mode, so that the transportation is facilitated.

In one embodiment, referring to fig. 5, a plurality of partitioned chambers 3a are formed in the header 3, and the partitioned chambers 3a and the cavities 12a are arranged in layers in the up-down direction. Illustratively, 3 compartments 3a are formed in the header 3 in the axial direction, which are a first compartment 3a1, a second compartment 3a2, and a third compartment 3a3 in this order from top to bottom. The lowermost compartment 3a is formed with a refrigerant outlet 3b. Exemplarily, the refrigerant outlet 3b is formed at the lower side of the third partitioning cavity 3a3, so that the refrigerant after heat exchange is accumulated in the third partitioning cavity 3a3, and the refrigerant after heat exchange can be timely discharged out of the collecting pipe 3 through the refrigerant outlet 3b arranged at the lower side, and the heat exchanger is simple, efficient and easy to implement.

At least one of the heat exchange tubes 2 is a return tube. Illustratively, the heat exchange tubes 2 in the first compartment 3a1 and/or the second compartment 3a2 near the bottom layer are return tubes through which the refrigerant can flow in reverse from the compartment 3a into the cavity 12a.

At least one of the cavities 12a is a return cavity communicating with two adjacent compartments 3a through a plurality of heat exchange tubes 2. Exemplarily, taking the third cavity 12a3 as a reflux cavity, the third cavity 12a3 communicates the first partition cavity 3a1 and the second partition cavity 3a2 through a plurality of heat exchange tubes 2; for another example, taking the sixth cavity 12a6 as a reflux cavity, the sixth cavity 12a6 communicates the second compartment 3a2 and the third compartment 3a3 through a plurality of heat exchange tubes 2. Therefore, the refrigerant in the adjacent layer of separation cavity 3a can flow back to the next layer of separation cavity by using the return cavity and the heat exchange tube 2 as transfer, and the heat exchange efficiency is high.

In one embodiment, at least a portion of the recirculation chamber may be lower than the opposing compartment 3a. For example, taking the first sub-compartment 3a1 as an example of backflow, the backflow cavity may be a third cavity 12a3 with a partial area lower than the first sub-compartment 3a1, or may be a fourth cavity 12a4, a fifth cavity 12a5 or a sixth cavity 12a6 with a total area lower than the first sub-compartment 3a 1. For another example, taking the second compartment 3a2 as an example of backflow, the backflow chamber may be a fifth cavity 12a5 and a sixth cavity 12a6, which are partially lower than the second compartment 3a2. The height difference is set to form the condition required by natural reflux.

In one embodiment, each return conduit communicates between one of the return chambers and the opposite compartment 3a. For example, taking the refrigerant backflow in the first sub-compartment 3a1 as an example, one end of the backflow pipe may communicate with the bottom area in the first sub-compartment 3a1, and the other end of the backflow pipe may communicate with the fourth cavity 12a4, the fifth cavity 12a5, or the sixth cavity 12a6 in an inclined manner. For another example, taking the refrigerant in the second compartment 3a2 as an example of the return, one end of the return pipe may communicate with the bottom side region in the second compartment 3a2, and the other end of the return pipe may communicate with the sixth cavity 12a6 in an inclined manner. Therefore, the height difference is arranged between the separation cavity 3a communicated with the reflux cavity through the reflux pipe, the refrigerant in the separation cavity 3a can flow back to the reflux cavity, the heat exchange is carried out by repeatedly utilizing the refrigerant, the cost is saved, and the heat exchange efficiency is high.

In one embodiment, a portion of the recirculation chamber is level with the opposing compartment 3a, and another portion of the recirculation chamber is lower than the opposing compartment 3a. Illustratively, taking the first sub-compartment 3a1 as an example of backflow, the backflow cavity, such as the middle region of the third cavity 12a3 and the bottom region of the first sub-compartment 3a1, are at the same height, and the lower region of the backflow cavity is lower than the bottom region of the first sub-compartment 3a 1. For another example, taking the second compartment 3a2 as an example of backflow, the backflow cavity is as high as the middle region of the fifth cavity 12a5 and the bottom region of the second compartment 3a2, and the lower region of the backflow cavity is lower than the bottom region of the second compartment 3a2. The return pipe is a straight pipe which is horizontally arranged. Illustratively, taking the first compartment 3a1 as a backflow example, one end of a backflow pipe, such as the heat exchange pipe 2 located at the bottommost side in the first compartment 3a1, may be communicated with the bottom side area of the first compartment 3a1, and the other end of the backflow pipe may be communicated with the middle side area of the third cavity 12a3, so that the refrigerant in the first compartment 3a1 may force the refrigerant located at the bottommost side to flow into one end of the backflow pipe under the influence of gravity, enter the third cavity 12a3 from the other end of the backflow pipe, and then flow to the second compartment 3a2 together with the refrigerant flowing into the third cavity 12a3 from the channel 11c.

For another example, taking the second compartment 3a2 as an example of the return flow, one end of the return pipe, such as the heat exchange pipe 2 located at the bottommost side in the second compartment 3a2, may communicate with the bottom side area in the second compartment 3a2, and the other end of the return pipe may communicate with the middle side area in the fifth cavity 12a5, so that the refrigerant in the second compartment 3a2 may force the refrigerant located at the bottommost side to flow into one end of the return pipe under the influence of gravity, flow out of the other end of the return pipe into the fifth cavity 12a5, then flow to the third compartment 3a3 through the heat exchange pipe 2 along with the refrigerant flowing into the fifth cavity 12a5 from the channel 11c, and finally flow out of the header 3 from the refrigerant outlet 3b. Through setting up the back flow with other heat exchange tubes 2 the same levels, need not in addition carry out additional design to it again, can reduce the installation degree of difficulty, improve production efficiency.

In one embodiment, the number of compartments 3a is less than the number of cavities 12a. Thus, on the premise of satisfying the reflux function, the manufacturing difficulty of the header 3 can be reduced, and the manufacturing cost can be reduced.

In one embodiment, referring to fig. 4 and 5, the heat exchanger 100 includes a fin 4, and the fin 4 is disposed on an outer surface of the heat exchange tube 2. Illustratively, the material of the fin 4 may be aluminum alloy or copper. The number of the fins 4 is not limited, and for example, the number of the fins 4 can be 6, and 6 fins 4 can be inserted on the heat exchange tube 2 at intervals and are parallel to the axis of the shunt tube 12 or the header 3. Therefore, when the hot air to be exchanged passes through the heat exchange tube 2, the fins 4 on the heat exchange tube can increase the heat exchange surface area of the heat exchange tube 2, and improve the heat exchange efficiency.

In another aspect, an embodiment of the present application provides an air conditioner, which includes the heat exchanger 100 in any one of the above embodiments.

In the present embodiment, by providing the heat exchanger 100 provided in the above embodiments in the air conditioner, the heating/cooling capacity of the air conditioner can be increased, and the risk of deformation caused by external vibration can be reduced, which is convenient for transportation.

The above description is only a preferred embodiment of the present application, and is not intended to limit the present application, and various modifications and changes may be made to the present application by those skilled in the art. All changes, equivalents, modifications and the like which come within the spirit and principle of the application are intended to be embraced therein.

Claims (10)

1. A manifold assembly, comprising:

the refrigerant collecting pipe (11) is formed with a refrigerant inlet (11 a), a containing cavity (11 b) and a plurality of channels (11 c), the containing cavity (11 b) is communicated with the refrigerant inlet (11 a), and the containing cavity (11 b) is formed with a plurality of branch ports (11 d);

the shunt tube (12), be formed with a plurality of mutual isolation's cavity (12 a) in the shunt tube (12), every passageway (11 c) all communicates one correspondingly cavity (12 a) and one branch opening (11 d).

2. Header assembly according to claim 1, wherein said shunt tubes (12) comprise a tube body (121) and a plurality of baffles (122), said plurality of baffles (122) being arranged at intervals along the axial direction of said tube body (121) to divide the space in said tube body (121) into a plurality of said cavities (12 a).

3. Header assembly according to claim 1, characterized in that the number of said cavities (12 a) corresponds to the number of said flow-dividing openings (11 d); the areas of the branch flow ports (11 d) are equal; at least one of the channels (11 c) is of helical configuration.

4. A header assembly according to claim 1, wherein a plurality of said cavities (12 a) are arranged in layers in an up-down direction, the volume of the lowermost of said cavities (12 a) being greater than the volume of each of the other of said cavities (12 a).

5. Header assembly according to claim 1, wherein a plurality of the branch flow ports (11 d) are circumferentially spaced on the bottom surface of the receiving chamber (11 b), and the refrigerant inlet (11 a) is disposed on the peripheral side surface of the header (11) and extends to the central region of the receiving chamber (11 b).

6. The header assembly according to any one of claims 1 to 5, wherein a groove (11 e) is formed on a peripheral side surface of one of the header (11) and the shunt tube (12), a peripheral side surface of the other of the header (11) and the shunt tube (12) is a fixing portion (12 b), the fixing portion (12 b) is accommodated in the groove (11 e), and the fixing portion (12 b) is in contact with and fixed to the groove (11 e).

7. A heat exchanger, comprising:

header assembly (1) according to any of claims 1 to 6;

the heat exchange tubes (2) are internally provided with a refrigerant flow channel (2 a), the heat exchange tubes (2) are arranged at intervals along the axial direction of the flow dividing tube (12), and each cavity (12 a) is communicated with at least one heat exchange tube (2);

the collecting pipe assembly comprises a collecting pipe (3), wherein the collecting pipe (3) and the shunt pipes (12) are arranged at intervals, a refrigerant outlet (3 b) is formed in the collecting pipe (3), and the collecting pipe assembly (1) is communicated with the refrigerant outlet (3 b) through the heat exchange pipe (2).

8. The heat exchanger according to claim 7, wherein a plurality of partitioned chambers (3 a) are formed in the header (3), the partitioned chambers (3 a) and the cavities (12 a) are all arranged in layers in the up-down direction, the refrigerant outlet (3 b) is formed in the lowest partitioned chamber (3 a), at least one cavity (12 a) is a return chamber, and the return chamber communicates with two adjacent partitioned chambers (3 a) through the plurality of heat exchange tubes (2).

9. The heat exchanger according to claim 8, characterized in that the number of compartments (3 a) is less than the number of cavities (12 a); the heat exchanger (100) comprises fins (4), and the fins (4) are arranged on the outer surface of the heat exchange tube (2).

10. An air conditioner, characterized in that it comprises a heat exchanger (100) according to any one of claims 7 to 9.

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