CN216924557U

CN216924557U - Air conditioner and heat exchanger assembly thereof

Info

Publication number: CN216924557U
Application number: CN202123037417.XU
Authority: CN
Inventors: 褚运通; 崔国栋; 王海胜; 张铭
Original assignee: Qingdao Haier Air Conditioner Gen Corp Ltd; Qingdao Haier Air Conditioning Electric Co Ltd; Haier Smart Home Co Ltd
Current assignee: Hefei Haier Air Conditioning Electronic Co ltd
Priority date: 2021-12-06
Filing date: 2021-12-06
Publication date: 2022-07-08
Anticipated expiration: 2031-12-06

Abstract

The utility model relates to the technical field of air conditioners, in particular to an air conditioner and a heat exchanger assembly thereof, and aims to solve the problem that the flow noise of a refrigerant is large due to uneven flow distribution of the conventional air conditioner. The heat exchanger assembly of an air conditioner provided by the utility model comprises: the air conditioner comprises a pipe group part, a heat exchanger and a heat exchanger, wherein the pipe group part comprises a plurality of branches for circulating a refrigerant of the air conditioner; a support portion for supporting the tube group portion; wherein the tube stack portion is configured with an interference structure configured with at least a portion of the plurality of legs to: the tube group portion is capable of changing refrigerant resistance in the corresponding branch by means of the interference structure during the refrigerant circulation of the air conditioner. The heat exchanger assembly provided by the utility model can effectively solve the problem of refrigerant noise caused by uneven flow distribution by arranging the interference structure at the pipe group part.

Description

Air conditioner and heat exchanger assembly thereof

Technical Field

The utility model relates to the technical field of air conditioners, and particularly provides an air conditioner and a heat exchanger assembly thereof.

Background

The air conditioner has become one of the essential household appliances for modern families because the air conditioner can effectively improve the indoor environment quality.

In the operation process of the air conditioner, the operation of the fan can generate noise, the refrigerant in the pipeline can also generate certain noise in the circulation process, one of the reasons of the noise generated by the circulation of the refrigerant is caused by the unbalanced refrigerant flow of each branch of the heat exchanger, and a good solution is not found in the prior art.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve or at least alleviate the technical problem, namely, the problem of large refrigerant circulation noise caused by uneven flow distribution of the existing air conditioner is solved.

In a first aspect, the present invention provides a heat exchanger assembly for an air conditioner, the air conditioner including an indoor unit of the air conditioner, the indoor unit of the air conditioner including the heat exchanger assembly, the heat exchanger assembly including: a tube group part including a plurality of branches through which a refrigerant of the air conditioner flows; a support portion for supporting the tube group portion; wherein the tube set portion is configured with an interference structure configured in at least a portion of the plurality of legs to: the tube group part can change refrigerant resistance in the corresponding branch by means of the interference structure during the refrigerant circulation of the air conditioner.

According to the heat exchanger assembly provided by the utility model, the interference structure is arranged on the pipe group part, and the resistance of the corresponding branch to the refrigerant is changed through the arrangement of the interference structure, so that the resistance of the branch to the refrigerant circulation tends to be consistent with that of other branches, thus the problem of uneven resistance caused by the structure of the pipeline can be effectively avoided, the problem of uneven liquid distribution can be further avoided when the refrigerant is distributed to each branch, the refrigerant noise problem caused by uneven liquid distribution can be further effectively reduced, and the user experience can be effectively improved.

There are various ways in which the interference structure of the present invention may be disposed on the tube block portion. For example, the interference structure may be integrally formed with the legs of the tube set portion, or the interference structure may be fixedly attached to the respective legs of the tube set portion by bonding, welding, or the like, or a combination thereof.

Further, the tube set portion may have an interference structure disposed on only one of the legs, or may have an interference structure disposed on a plurality of the legs. When a plurality of branches are configured with interference structures at the same time, the interference structures configured for each branch may be the same or different, for example, the shapes and/or the numbers of the interference structures may be the same or different.

The support portion of the present invention is used to support each of the branch tubes in the tube group portion so that the relative positions of the branch tubes are kept stable. The structure of the support portion may be a fin, a frame for supporting the tube group, a combination of a fin and a frame, or the like.

In some possible embodiments, the interference structure is disposed at a position of the tube group portion near an upstream side thereof as viewed in a direction in which the refrigerant flows.

By arranging the interference structure at a position of the tube group portion near the upstream side thereof, the effect of the interference structure in changing the resistance of the piping can be made more remarkable.

It will be appreciated that the interference structure may also be provided at any other location on the tube bank portion, such as near the middle thereof, near the downstream side thereof, both upstream and downstream, or the like.

In the indoor unit, the tube group portion is located near the upstream side thereof, i.e., the liquid inlet side of the heat exchanger unit.

In some possible embodiments, the tube group portion includes a liquid inlet tube group located at a position of the tube group portion near an upstream side thereof, and the interference structure is provided to the liquid inlet tube group.

In this way, a particular location of the interference structure on the tube set portion is provided. Because the feed liquor nest of tubes is closest to the feed liquor side of heat exchanger subassembly, it is most direct to the influence of pipeline reposition of redundant personnel resistance after the structure sets up in this position to interfere, and the effect of adjusting the pipeline resistance is best.

It can be understood that, referring to the state change of the refrigerant in the process of circulating in the heat exchanger, the pipe group part comprises a liquid inlet pipe group, a heat exchange pipe group and a gas return pipe group which are connected in sequence. The liquid inlet pipe group receives liquid refrigerants input from the evaporator side, the liquid refrigerants circulate in the heat exchange pipe group and are gradually converted into gaseous refrigerants after absorbing heat in the environment, and the gaseous refrigerants are converged to the air return main pipe through the plurality of branch pipes in the air return pipe group and then flow back to the compressor.

According to the heat exchanger assembly of air conditioner, in some possible embodiments, the liquid inlet pipe set comprises a plurality of liquid inlet branch pipes, and the interference structure is disposed on at least one portion of the plurality of liquid inlet branch pipes.

Thus, an embodiment is provided in which the interference structure is disposed in the inlet stack.

Through will interfering the partly of structure setting in the feed liquor branch pipe, and then adjust the pipeline resistance of this part feed liquor branch pipe, can reduce or eliminate the difference of pipeline resistance that corresponding branch pipe leads to because of factors such as bending, length to solve the inhomogeneous problem of reposition of redundant personnel.

In some possible embodiments, the interference structure includes at least one interference unit.

In this way, an implementation of the interference structure is provided.

It is understood that the interference structure may include a plurality of interference cells, and the structure of the plurality of interference cells may be the same or different. In addition, there are various ways of arranging the plurality of interference units in the branch pipe. For example, different branch pipes may be provided with different numbers and/or shapes of interference units, or a plurality of interference units may be provided with the same branch pipe.

In some possible embodiments, the interference structure includes a plurality of interference units, and the interference units are arranged at intervals along the direction in which the branch extends.

In this way, an arrangement is provided in the case of an interference structure comprising a plurality of interference cells. Through setting up like this, when realizing the purpose of the resistance of adjusting corresponding nest of tubes, can avoid interfering the monomer and excessively concentrate and influence the refrigerant and smoothly circulate.

It is understood that the plurality of interference units may be disposed along the branch pipe at intervals on only one side of the branch pipe, or may be disposed at positions offset on two or more sides of the branch pipe.

According to the heat exchanger assembly of the air conditioner, in some possible embodiments, the plurality of interference units are arranged along the branch in a staggered manner.

According to the heat exchanger assembly of the air conditioner as described above, in some possible embodiments, the interference unit is integrally formed with the corresponding branch circuit.

The interference monomer and the branch are integrally formed, so that the structure mode is simpler and more convenient, and the cost is low.

In some possible embodiments, the interference unit is an indentation formed in the branch or a protrusion protruding toward the inside of the branch.

The interference structure is constructed in an indentation mode, the construction mode is simple and rapid, the interference structure is easy to realize, and the indentation belongs to one part of the corresponding branch circuit, so that the problem of connection stability is not required to be considered.

In a second aspect, the present invention further provides an air conditioner, wherein the air conditioner is provided with the heat exchanger assembly of the air conditioner according to any one of the above technical solutions.

It can be understood by those skilled in the art that, since the air conditioner is configured with the heat exchanger assembly according to any one of the foregoing technical solutions, all technical effects that can be obtained by the heat exchanger assembly are achieved, and are not described herein again.

Drawings

Preferred embodiments of the present invention are described below in conjunction with the appended drawings, wherein:

FIG. 1 is a front view of a heat exchanger assembly provided by an embodiment of the present invention; and

FIG. 2 is a left side view of a heat exchanger assembly provided by an embodiment of the present invention;

list of reference numerals:

1. a heat exchanger assembly; 10. a liquid inlet pipe group; 100. a liquid inlet header pipe; 101. a first liquid inlet branch pipe; 102. a second liquid inlet branch pipe; 103. a third liquid inlet branch pipe; 104. a fourth liquid inlet branch pipe; 105. a fifth liquid inlet branch pipe; 1050. indentation; 106. a flow divider; 20. a gas return pipe group; 200. a main air return pipe; 201. a first return manifold; 202. a second return air branch pipe; 203. a third return air branch pipe; 204. a fourth return air branch pipe; 205. a fifth return branch pipe; 30. a heat exchange tube set; 40. a support portion.

Detailed Description

First, it should be noted that the following embodiments are only for explaining the technical principle of the present invention, and are not intended to limit the scope of the present invention.

Furthermore, in the following detailed description, numerous specific details are set forth in order to provide a better understanding of the present invention. It will be understood by those skilled in the art that the present invention may be practiced without some of these specific details.

In the description of the present invention, the terms "upper", "lower", "inner", "outer", etc. indicating directions or positional relationships are based on directions or positional relationships in actual use, which are merely for convenience of description, and do not indicate or imply that the claimed apparatus must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," … …, "fifth" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Before explaining the technical solution provided by the present invention, the reason for the problem solved by the present invention is explained first.

For promoting the heat exchange efficiency of heat exchanger, the heat exchanger often disposes many parallel branch pipes, therefore can have the demand of refrigerant evenly distributed to each branch pipe. Research shows that the resistance exerted by different branches on the refrigerant flowing inside the branch pipes is different due to different lengths, bending numbers, bending degrees and the like of the branch pipes, so that the amount of the refrigerant distributed by each branch pipe is unbalanced in the process of distributing the refrigerant, and the problems of large amount of partial branch pipes and small amount of partial branch pipes occur. When the quantity of the refrigerant in some branches is small, the refrigerant in the branch is evaporated faster, the flowing speed of the refrigerant is also increased, the intensity of turbulent flow is increased, and thus turbulent flow noise is generated.

Therefore, in order to solve the above problems, the utility model provides a heat exchanger assembly of an air conditioner, wherein an interference structure is arranged on a pipe group part, and the resistance of a corresponding branch to a refrigerant is changed through the arrangement of the interference structure, so that the resistance of the branch and the resistance of other branches to the circulation of the refrigerant tend to be consistent, thus the problem of uneven resistance caused by the structure of a pipeline can be effectively avoided, the problem of uneven liquid distribution can be further avoided when the refrigerant is distributed to each branch, the refrigerant noise problem caused by uneven liquid distribution can be further effectively reduced, and the user experience can be effectively improved.

The structure and the operation of the heat exchanger assembly according to the embodiment of the present invention will be explained with reference to the accompanying drawings.

FIG. 1 is a front view of a heat exchanger assembly provided by an embodiment of the present invention; fig. 2 is a left side view of a heat exchanger assembly provided in an embodiment of the present invention.

As shown in fig. 1, the heat exchanger assembly 1 according to the present embodiment includes tube group portions and a support portion 40 for supporting the tube group portions, wherein the support portion 40 includes a frame, which is located at a position of the tube group portions near both left and right ends thereof and mainly functions as fixing and supporting, and fins, which are connected to the tube group portions and the frame and mainly function as supporting and heat dissipating.

Referring to fig. 1 and 2, the tube bank portion of the heat exchanger module 1 includes a liquid inlet tube bank 10, a heat exchange tube bank 30, and a liquid return tube bank 20. As viewed in the refrigerant flowing direction, the liquid inlet pipe group 10 is located on the upstream side of the heat exchange pipe group 30, the air return pipe group 20 is located on the downstream side of the heat exchange pipe group 30, and the support portion 40 is mainly provided on the heat exchange pipe group 30.

Referring to fig. 2, liquid inlet pipe group 10 includes a plurality of liquid inlet branch pipes, and in this embodiment, liquid inlet pipe group 10 includes a liquid inlet header pipe 100, a flow divider 106, a first liquid inlet branch pipe 101, a second liquid inlet branch pipe 102, a third liquid inlet branch pipe 103, a fourth liquid inlet branch pipe 104, and a fifth liquid inlet branch pipe 105. The air return pipe set 20 includes a plurality of air return branch pipes, and in this embodiment, the air return pipe set 20 includes an air return header pipe 200, a first air return branch pipe 201, a second air return branch pipe 202, a third air return branch pipe 203, a fourth air return branch pipe 204, and a fifth air return branch pipe 205. Correspondingly, the heat exchange tube set 30 includes a first heat exchange branch tube, a second heat exchange branch tube, a third heat exchange branch tube, a fourth heat exchange branch tube and a fifth heat exchange branch tube. The first liquid inlet branch pipe 101, the first heat exchange branch pipe and the first gas return branch pipe 201 are connected in sequence to form a first branch pipe, and the other branch pipes are formed in the same way.

Taking the circulation of the refrigerant in the first branch pipe as an example, the liquid refrigerant output from the condenser side enters the flow divider 106 through the liquid inlet header pipe 100, and under the distribution action of the flow divider 106, a part of the refrigerant enters the first liquid inlet branch pipe 101, exchanges heat with the indoor environment in the first heat exchange branch pipe, gradually changes into a gaseous state, enters the first gas return branch pipe 201, and then is collected into the gas return header pipe 200 and flows back to the compressor. The circulation paths of the refrigerant in the other branch pipes are the same.

With continued reference to fig. 2, it can be seen that there is a certain difference in length, bending degree, etc. of each of the liquid inlet branch pipes and the gas return branch pipes. Taking first feed liquor branch pipe 101 and fifth feed liquor branch pipe 105 as an example, the quantity of bending of first feed liquor branch pipe 101 is greater than fifth feed liquor branch pipe 105, and consequently the circulation resistance of refrigerant in first feed liquor branch pipe 101 can be greater than the circulation resistance in fifth feed liquor branch pipe 105, so, will appear distributing to the problem that the refrigerant volume in first feed liquor branch pipe 101 is less than the refrigerant volume in distributing to fifth feed liquor branch pipe 105, refrigerant reposition of redundant personnel unbalance's problem produces from this.

In order to solve the above problems as much as possible, the pipe group portion in the embodiment of the present invention is configured with an interference structure, and the internal structure of the corresponding branch pipe is changed by the interference structure, so as to change the resistance of the branch pipe to the refrigerant flow.

Specifically, as shown in fig. 2, the interference structure in this embodiment includes a plurality of interference units, each interference unit is an indentation formed in a corresponding branch pipe, and the indentation changes an inner dimension of the corresponding branch pipe, thereby changing a resistance applied by the branch pipe to a refrigerant flow. In this embodiment, the indentations 1050 are provided in the fifth liquid inlet branch pipe 105, and the indentations 1050 are provided in plurality and are arranged at intervals along the extending direction of the fifth liquid inlet branch pipe 105. The indentations 1050 in this embodiment are in the form of circular arc shaped pits recessed from the surface of the fifth inlet manifold 105 towards the interior of the manifold. It will be appreciated that the indentations may also be in the form of square pits, strip pits, etc. Indentation 1050 adopts dedicated indentation instrument to beat to suppress, and fifth feed liquor branch pipe 105 is behind indentation 1050, and the position of beating the indentation can be towards its inside protrusion, makes the pipe diameter of this position department reduce, and then makes the resistance of this branch pipe increase, so, the refrigerant volume that gets into this branch pipe will corresponding reduction. Before the indentation is not arranged, the fifth liquid inlet branch pipe 105 is often distributed with more refrigerants, and after the indentation is arranged, the distributed refrigerant amount is reduced and tends to be consistent with the distributed refrigerant amount of other branch pipes, so that the problem of uneven refrigerant distribution is effectively solved, and the problem of refrigerant noise caused by uneven distribution is solved.

The selection of the branch to be indented will now be described.

And S1, after the heat exchanger assembly is connected to the air conditioning system, firstly, configuring a temperature sensor for each return air branch pipe in the return air pipe group of the heat exchanger assembly.

S2, the air conditioning system is operated in a refrigeration mode, the return air temperature of each branch is detected through the temperature sensor, under normal conditions, the return air temperature of each branch is the same or close, the temperature difference is small, when the difference between the temperature of a certain return air branch and the temperature of other return air branches in the detected temperature data is large, the heat exchange degree of the branch and other branches is different, and then the difference between the refrigerant quantity of the branch and the refrigerant quantity of other branches can be judged.

And S3, finding out the branch with the lowest temperature in the air return pipe group, and using an indentation tool to make an indentation on the liquid inlet branch pipe of the branch, wherein the diameter of the indentation is one half of the diameter of the corresponding liquid inlet branch pipe, and certainly can be other reasonable sizes, after the branch is stabilized for a certain time, if the branch continues to operate for 5 minutes, the temperature of each air return branch pipe of the air return pipe group is detected again, and the indentation continues to be made on the branch with the lowest temperature in the same way until the temperature difference of each air return branch pipe in the air return pipe group is about 1 ℃. Therefore, the branch pipe needing to be configured with the interference structure can be determined, and the number of interference single bodies needing to be configured with the branch pipe can be determined.

It will be appreciated that the arrangement of the individual manifolds in the heat exchange tube bank is substantially the same for different heat exchangers, and thus the positions of the interference structures can be referred to one another for different heat exchangers.

It should be noted that the arrangement of the indentations in the inlet pipe set in this embodiment is merely exemplary, and is for illustrating the working principle of the present invention, and should not be construed as limiting the protection scope of the present invention.

In addition, the numerical values in the above embodiments are only exemplary, and those skilled in the art can reasonably adjust the numerical values according to actual needs, and the above examples should not be construed as limiting the scope of the present invention.

So far, the technical solutions of the present invention have been described in connection with the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of the present invention is obviously not limited to these specific embodiments. Equivalent changes or substitutions of related technical features can be made by those skilled in the art without departing from the principle of the utility model, and the technical scheme after the changes or substitutions can fall into the protection scope of the utility model.

Claims

1. The utility model provides a heat exchanger assembly of air conditioner, its characterized in that, the air conditioner includes machine in the air conditioning, machine includes heat exchanger assembly in the air conditioning, heat exchanger assembly includes:

a tube group part including a plurality of branches through which a refrigerant of the air conditioner flows; and

a support portion for supporting the tube group portion;

wherein the tube set portion is configured with an interference structure configured in at least a portion of the plurality of legs to:

the tube group part can change refrigerant resistance in the corresponding branch by means of the interference structure during the refrigerant circulation of the air conditioner.

2. The heat exchanger assembly of an air conditioner according to claim 1, wherein the interference structure is provided at a position of the tube group portion near an upstream side thereof as viewed in a direction in which a refrigerant flows.

3. The heat exchanger assembly of an air conditioner according to claim 2, wherein the tube block portion includes a feed tube block at a position near an upstream side of the tube block portion, the interference structure being provided to the feed tube block.

4. The heat exchanger assembly of an air conditioner according to claim 3, wherein the inlet pipe group includes a plurality of inlet branch pipes, and the interference structure is provided to at least a portion of the plurality of inlet branch pipes.

5. The heat exchanger assembly of an air conditioner according to claim 1, wherein the interference structure includes at least one interference unit.

6. The heat exchanger assembly of an air conditioner according to claim 5, wherein the interference structure includes a plurality of interference units arranged at intervals along a direction in which the branch path extends.

7. The heat exchanger assembly of an air conditioner according to claim 6, wherein the plurality of interference cells are arranged in a staggered manner along the branch.

8. The heat exchanger assembly of an air conditioner according to claim 5, wherein the interference unit is integrally formed with the corresponding branch circuit.

9. The heat exchanger assembly of an air conditioner according to claim 8, wherein the interference unit is an indentation formed at the branch passage or a protrusion protruding toward the inside of the branch passage.

10. An air conditioner characterized in that it is provided with the heat exchanger assembly of the air conditioner as set forth in any one of claims 1 to 9.