CN213810896U

CN213810896U - Heat exchanger of air conditioner, air conditioner outdoor unit with heat exchanger and air conditioner

Info

Publication number: CN213810896U
Application number: CN202022923695.4U
Authority: CN
Inventors: 颜利波
Original assignee: GD Midea Heating and Ventilating Equipment Co Ltd; Hefei Midea Heating and Ventilating Equipment Co Ltd
Current assignee: GD Midea Heating and Ventilating Equipment Co Ltd; Hefei Midea Heating and Ventilating Equipment Co Ltd
Priority date: 2020-12-08
Filing date: 2020-12-08
Publication date: 2021-07-27
Anticipated expiration: 2030-12-08

Abstract

The utility model relates to an air conditioning technology field, concretely relates to heat exchanger of air conditioner and have its air condensing units and air conditioner. The utility model discloses aim at solving the technical problem of heat transfer load unbalance between the upper reaches of heat exchanger and the low reaches. Mesh for this reason, the utility model provides a heat exchanger of air conditioner, include: a refrigerant main inlet pipe; the heat exchanger comprises a heat exchanger body, a heat exchanger body and a heat exchanger, wherein the heat exchanger body comprises a plurality of heat exchange tubes; the refrigerant is mainly led into the length direction interval of pipe and is linked to the lateral wall that the pipe was always led into to the refrigerant to a plurality of shunt tubes, a plurality of shunt tubes communicate with a plurality of heat exchange tubes respectively, and the refrigerant is always led into the interval between the adjacent shunt tubes of the low reaches department of pipe and is less than the interval between the adjacent shunt tubes of upper reaches department. The utility model discloses a set up a plurality of shunt tubes of low reaches department to comparatively intensive distribution on the refrigerant is always advanced the pipe to this phenomenon that the flow is not enough appears in the refrigerant that compensaties low reaches department, thereby makes this internal refrigerant of inflow heat exchanger can the evenly distributed.

Description

Heat exchanger of air conditioner, air conditioner outdoor unit with heat exchanger and air conditioner

Technical Field

The utility model relates to an air conditioning technology field, concretely relates to heat exchanger of air conditioner and have its air condensing units and air conditioner.

Background

This section provides background information related to the present disclosure only and is not necessarily prior art.

For the outdoor unit of the air conditioner, the flow field distribution in the heat exchanger is usually uneven, especially for the outdoor unit of the air conditioner with side air outlet, the diversion of the refrigerant in the heat exchanger is also influenced by gravity, and the distribution characteristic of the flow field and the influence of the gravity of the refrigerant need to be fully considered when the flow path design is performed on the heat exchanger. For the outdoor unit of the air conditioner with side air outlet, the flow field distribution usually shows the characteristics of large flow velocity in the middle of the heat exchanger and small flow velocity at the upper and lower ends of the heat exchanger, and is influenced by the spatial layout, and the flow velocity at the bottom of the heat exchanger is usually lower than that at the top of the heat exchanger. The distribution of the flow field in the heat exchanger and the influence of the gravity of the refrigerant can cause the phenomenon of unbalanced heat exchange load between the upstream and the downstream of the heat exchanger.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides a heat exchanger of air conditioner can make this internal refrigerant evenly distributed of inflow heat exchanger, reduces the phenomenon that the heat transfer load is uneven to appear between the upper reaches of heat exchanger and the low reaches.

The utility model also provides an air condensing units, heat exchanger including above-mentioned air conditioner.

The utility model also provides an air conditioner, machine and above-mentioned air condensing units in the air conditioning.

According to the utility model discloses a heat exchanger of air conditioner, the heat exchanger includes: a refrigerant main inlet pipe; the heat exchanger comprises a heat exchanger body, a heat exchanger body and a heat exchanger, wherein the heat exchanger body comprises a plurality of heat exchange tubes; the refrigerant is mainly led into the length direction interval of pipe and is linked to the lateral wall that the pipe was always led into to the refrigerant to a plurality of shunt tubes, a plurality of shunt tubes communicate with a plurality of heat exchange tubes respectively, and the refrigerant is always led into the interval between the adjacent shunt tubes of the low reaches department of pipe and is less than the interval between the adjacent shunt tubes of upper reaches department.

According to the utility model discloses a heat exchanger of air conditioner sets up a plurality of shunt tubes through locating the low reaches to comparatively intensive distribution on the refrigerant is always advanced the pipe to this compensates the refrigerant of low reaches department and the phenomenon that the flow is not enough appears, thereby makes this internal refrigerant of inflow heat exchanger can the evenly distributed.

According to the utility model discloses a heat exchanger of air conditioner, heat exchanger still include the branch flow tube, and the shunt tubes of the upper reaches department that the refrigerant always advances the pipe communicate with two at least heat exchange tubes one by one respectively through two at least branch flow tubes.

According to the utility model discloses a some embodiments, the refrigerant always advances a plurality of shunt tubes of the low reaches department of pipe and uses two at least adjacent shunt tubes to manage the lateral wall that communicates to the refrigerant always advances the pipe as a shunt tube, and the quantity of shunt tubes is the same with the quantity of every shunt tubes upper branch flow tube of upper reaches department in every group shunt tube group.

According to the utility model discloses a some embodiments, distance between the adjacent two sets of reposition of redundant personnel nest of tubes is the same with the interval between the adjacent shunt tubes of upper reaches department, and interval between the adjacent shunt tubes in every set of reposition of redundant personnel nest of tubes is the same with the interval between the adjacent branch flow tube.

According to the utility model discloses a some embodiments, a plurality of heat exchange tubes form the multicomponent nest of tubes in the heat exchanger is internal, the multicomponent nest of tubes respectively with a plurality of shunt tubes of upper reaches department and the multicomponent nest of tubes one-to-one of low reaches department.

According to the utility model discloses a some embodiments, a plurality of heat exchange tubes in every group reposition of redundant personnel nest of tubes form a plurality of passageways of parallel distribution, and the quantity of a plurality of passageways is the same with the quantity of branch's flow tube on every shunt tubes or the quantity of shunt tubes in every group reposition of redundant personnel nest of tubes.

According to some embodiments of the present invention, the plurality of heat exchange tubes in each group of the branch tube groups form a plurality of channels connected in parallel and are connected to the distributor of the heat exchanger through a capillary tube after being collected.

According to the utility model discloses a some embodiments, refrigerant total inlet pipe and heat exchanger body all set up along vertical direction windward, and a plurality of shunt tubes and branch flow tube all set up along the horizontal direction.

According to the utility model discloses an air condensing units, air condensing units include the heat exchanger of above-mentioned air conditioner.

According to the utility model discloses an air conditioner, air conditioner include machine and above-mentioned air condensing units in the air conditioning.

According to the utility model discloses an air conditioner, when air condensing units is as the evaporimeter, the refrigerant state that the refrigerant always advances pipe one side is the gaseous state, through always advancing the pipe at the refrigerant and setting up more shunt tubes, can reduce the refrigerant and always advance the pressure drop of pipe department refrigerant, when air condensing units is as the condenser, because upward buoyancy effect need be overcome to the refrigerant of gaseous state downward flow in-process, through setting up more shunt tubes at low reaches, can compensate the not enough phenomenon of low reaches flow, and simultaneously, can also indirectly increase the pressure loss of upper reaches department refrigerant.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:

fig. 1 is a schematic structural diagram of a heat exchanger of an air conditioner according to the present invention.

Wherein the reference numbers are as follows:

100. a heat exchanger;

10. a refrigerant main inlet pipe;

21. a shunt tube; 22. a branch flow pipe;

30. a heat exchange pipe;

40. a capillary tube;

50. a dispenser.

Detailed Description

Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art. It should be noted that, the utility model discloses a heat exchanger not only can be applied to the air conditioner, can also answer in other equipment that have similar structure, and this kind of adjustment belongs to the utility model discloses heat exchanger's protection scope.

It is to be understood that the terminology used herein is for the purpose of describing particular example embodiments only, and is not intended to be limiting. As used herein, the singular forms "a", "an" and "the" may be intended to include the plural forms as well, unless the context clearly indicates otherwise. The terms "comprising," "including," and "having" are inclusive and therefore specify the presence of stated features, elements, and/or components, but do not preclude the presence or addition of one or more other features, elements, components, and/or groups thereof.

For convenience of description, spatially relative terms, such as "upper", "inner", "horizontal", "vertical", "upstream", "downstream", "outer", "lateral", and the like, may be used herein to describe one element or feature's relationship to another element or feature as illustrated in the figures. This spatially relative relationship is intended to encompass different orientations of the mechanism in use or operation in addition to the orientation depicted in the figures. For example, if the mechanism in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" or "over" the other elements or features. Thus, the example term "below … …" can include both an orientation of above and below. The mechanism may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

It should be noted that, as shown in fig. 1, in the embodiment of the present application, for convenience of explaining the specific structure and technical effect of the heat exchanger 100, an "upstream" and a "downstream" of the heat exchanger 100 are introduced, where the "upstream" and the "downstream" of the heat exchanger 100 are flow directions of the refrigerant when the heat exchanger 100 is used as a condenser, and a direction indicated by an arrow in the refrigerant main inlet 10 in fig. 1 is a flow direction of the refrigerant in the refrigerant main inlet 10, that is, a direction in which the refrigerant flows from the refrigerant main inlet 10 to the capillary tube 40, or when the heat exchanger 100 is placed in a vertical direction, the "upstream" refers to a region located at a top of the refrigerant main inlet 10, and the "downstream" refers to a region located at a bottom of the refrigerant main inlet 10.

As shown in fig. 1, according to the utility model discloses a heat exchanger 100 of air conditioner that first aspect provided, heat exchanger 100 includes that the refrigerant always advances pipe 10, heat exchanger 100 body and a plurality of shunt tubes 21, specifically, refrigerant always advances pipe 10 in the embodiment of this application is flute type pipe, the direction that the arrow head is shown in fig. 1 refrigerant always advances pipe 10 is the flow direction of refrigerant in the refrigerant always advances pipe 10 promptly, heat exchanger 100 body includes a plurality of heat exchange tubes 30, a plurality of shunt tubes 21 communicate to the lateral wall that the refrigerant always advances pipe 10 along the length direction interval of refrigerant always advances pipe 10, a plurality of shunt tubes 21 communicate with a plurality of heat exchange tubes 30 respectively, and the refrigerant always advances the interval between the adjacent shunt tubes 21 of pipe 10's low reaches department and is less than the interval between the adjacent shunt tubes 21 of high reaches department.

According to the utility model discloses a heat exchanger 100 of air conditioner, the refrigerant import that the refrigerant always entered pipe 10 is located the refrigerant and always advances the upper reaches of pipe 10, perhaps is located the refrigerant and always advances the top of pipe 10, consequently, the refrigerant always advances pipe 10 and can appear the uneven phenomenon of upstream and downstream refrigerant distribution, the embodiment of the utility model discloses a set up to comparatively intensive distribution on the refrigerant always advances pipe 10 through a plurality of shunt tubes 21 with low reaches department to this compensates the refrigerant of low reaches department and appears the phenomenon that the flow is not enough, thereby makes the refrigerant of inflow heat exchanger 100 originally internal can the balanced distribution, reduces the phenomenon that heat transfer load is uneven to appear between the upper reaches of heat exchanger 100 and the low reaches.

It should be noted that, the above embodiment merely proposes that the spacing between adjacent shunt tubes 21 at the downstream is smaller than the spacing between adjacent shunt tubes 21 at the upstream, and the specific distribution manner of the upstream and downstream shunt tubes 21 is not limited, because the technical problem of insufficient downstream refrigerant flow can be alleviated to some extent as long as the feature that the spacing between adjacent shunt tubes 21 at the downstream is smaller than the spacing between adjacent shunt tubes 21 at the upstream is satisfied, and the specific distribution manner of the upstream and downstream shunt tubes 21 will be described through the preferred embodiment.

As shown in fig. 1, according to the embodiment of the present invention, the heat exchanger 100 further includes branch flow pipes 22, and the branch pipes 21 at the upstream of the refrigerant inlet pipe 10 are respectively communicated with the at least two heat exchange pipes 30 one by one through the at least two branch flow pipes 22.

As a preferred embodiment of the present application, the at least two branch flow pipes 22 comprise two branch flow pipes 22, two inlets of the two branch flow pipes 22 converge at an outlet of the flow pipe 21 at an upstream, and an outlet of each branch flow pipe 22 is communicated with a U-shaped connecting pipe on the body of the heat exchanger 100 for communicating the two heat exchange pipes 30. Furthermore, the purpose of classifying the refrigerant is achieved through the shunt tubes 21 and the at least two branch flow tubes 22, and the pressure loss of the refrigerant at the upstream can be increased, so that a certain amount of refrigerant can flow to the downstream of the refrigerant main inlet pipe 10, and the purpose of balancing the refrigerant at the upstream and the downstream of the refrigerant main inlet pipe 10 is achieved.

Still referring to fig. 1, in some embodiments of the present invention, the plurality of dividing tubes 21 at the downstream of the refrigerant main inlet tube 10 uses at least two adjacent dividing tubes 21 as a heat exchanging tube 30 group communicating to the sidewall of the refrigerant main inlet tube 10, and the number of the dividing tubes 21 in each heat exchanging tube 30 group is the same as the number of the branch flow tubes 22 on each dividing tube 21 at the upstream.

According to the embodiment of the present invention, the distance between the adjacent shunt tubes 21 in each group of heat exchange tubes 30 at the downstream is equal to the distance between the adjacent branch flow tubes 22 on each shunt tube 21 at the upstream, and the structure of the branch flow tubes 21 in each group of heat exchange tubes 30 at the downstream is the same as the structure of the branch flow tubes 22 on each shunt tube 21 at the upstream, that is, the heat exchange tubes 30 at the downstream can be obtained by improving the flow tubes 21 at the upstream and the branch flow tubes 22, or the branch flow tubes 21 at the upstream are removed, and the heat exchange tubes 30 at the downstream can be obtained by directly communicating the branch flow tubes 22 with the refrigerant main inlet tube 10, and the upstream and downstream tubes are distributed, so that the original layout of a plurality of heat exchange tubes 30 in the heat exchanger 100 does not need to be changed, only the shunt tubes 21 on the refrigerant main inlet tube 10 need to be slightly improved, and the manufacturing cost of the heat exchanger 100 is reduced, the manufacturing cost and the manufacturing efficiency of the heat exchanger 100 are improved.

With continued reference to fig. 1, according to the embodiment of the present invention, the distance between two adjacent sets of heat exchange tubes 30 is the same as the distance between the adjacent shunt tubes 21 at the upstream, and the distance between the adjacent shunt tubes 21 in each set of heat exchange tubes 30 is the same as the distance between the adjacent branch flow tubes 22.

According to the embodiment of the present invention, it should be noted that, in the embodiment of the present invention, the distance between two adjacent sets of heat exchange tubes 30 is set to be the same as the distance between the adjacent branch pipes 21 at the upstream, so that there is no need to modify the heat exchange tubes 30 in the body of the heat exchanger 100 and the body of the heat exchanger 100, and the manufacturing cost and the manufacturing efficiency of the heat exchanger 100 are improved, it can be understood by those skilled in the art that the existing heat exchanger 100 is generally provided with the main branch pipes 21 distributed at equal intervals on the refrigerant main inlet pipe 10, and then each main branch pipe 21 is communicated with two three heat exchange tubes 30 on the body of the heat exchanger 100 through two three branch pipes 22, and the embodiment of the present invention can be understood as canceling the downstream main branch pipe 21, and then directly communicating the two three branch pipes 22 communicated with the downstream main branch pipe 21 with the refrigerant main inlet pipe 10, thereby improving the circulation efficiency of the refrigerant flowing into the heat exchanger 100 body at the downstream of the refrigerant main inlet pipe 10.

With continued reference to fig. 1, in some embodiments of the present invention, the plurality of heat exchange tubes 30 form a plurality of groups of heat exchange tubes 30 in the heat exchanger 100, and the plurality of groups of heat exchange tubes 30 respectively correspond to the plurality of flow dividing tubes 21 at the upstream and the plurality of groups of heat exchange tubes 30 at the downstream.

According to the embodiment of the present invention, the heat exchange tubes 30 at the top of the heat exchanger 100 body include 18 heat exchange tubes 30, and the other heat exchange tubes 30 in the heat exchanger 100 body all include 12 heat exchange tubes 30, that is, except the 18 heat exchange tubes 30 at the top of the heat exchanger 100 body, the number of the heat exchange tubes 30 in the other heat exchange tubes 30 in the heat exchanger 100 body is the same.

With continued reference to fig. 1, in some embodiments of the present invention, the plurality of heat exchange tubes 30 in each group of heat exchange tubes 30 form a plurality of channels distributed in parallel, and the number of the plurality of channels is the same as the number of branch flow tubes 22 on each flow dividing tube 21 or the number of flow dividing tubes 21 in each group of heat exchange tubes 30.

According to the embodiment of the utility model, the mode that three rows distribute is set to a plurality of heat exchange tubes 30 in heat exchanger 100 is originally internal to set up two branch flow pipes 22 and every group heat exchange tube 30 group on every shunt tubes 21 and include two shunt tubes 21 as the example, a plurality of heat exchange tubes 30 of two rows before heat exchanger 100 is originally internal form two intercrossing 8 font refrigerant runners, two intercrossing refrigerant runners assemble on a plurality of heat exchange tubes 30 on one row after at last, the refrigerant runner after assembling flows to heat exchanger 100's distributor 50 through capillary 40 at last. Specifically, the heat exchange pipe 30 is communicated with the heat exchange pipe 30 through a U-shaped connection pipe.

According to the embodiment of the present invention, the plurality of heat exchange tubes 30 in each group of heat exchange tubes 30 form a plurality of channels connected in parallel and are connected to the distributor 50 of the heat exchanger 100 through one capillary tube 40 after being collected.

In this embodiment, the refrigerant main inlet pipe 10 adopts an upward-feeding mode, the upstream of the refrigerant main inlet pipe 10 adopts a one-to-two flow path distribution, each flow dividing pipe 21 is connected with two branch flow pipes 22, all the plurality of heat exchange pipes 30 in the heat exchanger 100 body adopt a two-in-one distribution mode, the plurality of heat exchange pipes 30 at each two flow paths are converged and then communicated with one capillary tube 40, and then the heat exchange pipes are merged and connected to the same distributor 50.

As shown in fig. 1, in some embodiments of the present invention, the refrigerant inlet manifold 10 and the heat exchanger 100 are disposed facing the wind in the vertical direction, and the plurality of dividing pipes 21 and the branch flow pipes 22 are disposed in the horizontal direction.

According to the utility model discloses an embodiment, when heat exchanger 100 uses as the evaporimeter, the distribution of heat exchanger 100 cooperation wind field, consider that flow path low reaches density diminishes, the velocity of flow increases, the flow path number is increase, make the heating flow path heat transfer coefficient improve, compromise the flow resistance simultaneously, make flow distribution even, when heat exchanger 100 uses as the condenser, shunt tubes 21 through setting up more path number in heat exchanger 100's low reaches, it is less to prevent that the refrigerant come-up from leading to lower part flow path refrigerant flow distribution, lead to the refrigerant uneven phenomenon of distribution to appear in heat exchanger 100.

Specifically, the heat exchanger 100 is provided with a refrigerant flow path corresponding to the uneven wind field, when the heat exchanger 100 is used as a condenser, the flow direction of the refrigerant and the wind speed direction form a counter flow, the upstream of the refrigerant main inlet pipe 10 is divided into a U-pipe flow path formed by two branch flow pipes 22 by using one branch pipe 21, the U-pipe flow paths are combined in the heat exchanger 100 body to form one path to the same capillary tube 40 and enter the distributor 50, the downstream flow path of the refrigerant main inlet pipe 10 is respectively connected with the two U-pipe flow paths by using two branch pipes 21, and then the two U-pipe flow paths are combined to the same capillary tube 40 and enter the distributor 50.

The second aspect of the present invention further provides an outdoor unit of an air conditioner, which includes the heat exchanger 100 of the above air conditioner.

According to the utility model discloses an air condensing units, when air condensing units uses as the evaporimeter, air condensing units distributes through the vertical wind field of placing in the cooperation air condensing units, consider that heat exchanger 100's downstream flow path density diminishes, the velocity of flow increases, the flow number is the increase, make the heat transfer coefficient who heats the flow path improve, compromise the flow resistance simultaneously, make flow distribution even, when air condensing units uses as the condenser, be provided with the shunt tubes 21 of more pathnumbers in heat exchanger 100's low reaches, it is less to prevent that the refrigerant come-up from leading to the refrigerant flow distribution of lower part flow path, lead to the refrigerant uneven phenomenon of distribution to appear at heat exchanger 100.

The third aspect of the present invention also provides an air conditioner, which comprises an air conditioner indoor unit and the air conditioner outdoor unit.

According to the utility model discloses an air conditioner, when air condensing units is as the evaporimeter, the refrigerant state that the refrigerant always advances pipe 10 one side is the gaseous state, through always advancing pipe 10 at the refrigerant and setting up more shunt tubes 21, can reduce the refrigerant and always advance the pressure drop of pipe 10 department refrigerant, when air condensing units is as the condenser, because upward buoyancy effect need be overcome to the refrigerant downflow in-process of gaseous state, through setting up more shunt tubes 21 at low reaches, can compensate the not enough phenomenon of low reaches flow, and simultaneously, can also indirectly increase the pressure loss of upper reaches department refrigerant.

It should be noted that the above embodiment illustrates the heat exchanger 100 being placed vertically through an outdoor unit of an air conditioner, and in other embodiments of the present application, the heat exchanger 100 may also be used for an indoor unit and the heat exchanger 100 being placed horizontally.

In addition, above-mentioned embodiment only on air conditioner, the indoor machine of air conditioner and heat exchanger 100 with the utility model discloses a key improvement point has been elucidated, about other parts on air conditioner, the indoor machine of air conditioner and heat exchanger 100, no longer elaborately elaborates on if compressor, cross valve etc..

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A heat exchanger of an air conditioner, characterized in that the heat exchanger comprises:

a refrigerant main inlet pipe;

a heat exchanger body comprising a plurality of heat exchange tubes;

the refrigerant main inlet pipe comprises a plurality of flow dividing pipes, the flow dividing pipes are communicated to the side wall of the refrigerant main inlet pipe at intervals along the length direction of the refrigerant main inlet pipe, the flow dividing pipes are communicated with the heat exchange pipes respectively, and the space between the adjacent flow dividing pipes at the downstream of the refrigerant main inlet pipe is smaller than the space between the adjacent flow dividing pipes at the upstream.

2. The heat exchanger of an air conditioner as claimed in claim 1, further comprising branch flow pipes, wherein the branch flow pipes at the upstream of the refrigerant main inlet pipe are respectively communicated with at least two heat exchange pipes one by one through at least two of the branch flow pipes.

3. The heat exchanger of an air conditioner according to claim 2, wherein the plurality of branch pipes at the downstream of the refrigerant main inlet pipe are connected to the side wall of the refrigerant main inlet pipe by at least two adjacent branch pipes as a branch pipe group, and the number of the branch pipes in each group of the branch pipe group is the same as the number of the branch pipes on each branch pipe at the upstream.

4. The heat exchanger of an air conditioner according to claim 3, wherein the distance between two adjacent groups of said divided tube groups is the same as the pitch between adjacent divided tubes at the upstream, and the pitch between adjacent divided tubes in each group of said divided tube groups is the same as the pitch between adjacent branched flow tubes.

5. The heat exchanger of an air conditioner according to claim 4, wherein the plurality of heat exchange tubes form a multi-split tube group in the heat exchanger body, and the multi-split tube group corresponds to the plurality of split tubes at the upstream and the multi-split tube group at the downstream one by one, respectively.

6. The heat exchanger of an air conditioner according to claim 5, wherein the plurality of heat exchange tubes in each of the divided tube groups form a plurality of channels distributed in parallel, and the number of the plurality of channels is the same as the number of the branched flow tubes on each of the branched flow tubes or the number of the branched flow tubes in each of the divided tube groups.

7. The heat exchanger of an air conditioner according to claim 6, wherein the plurality of heat exchange tubes in each group of the diverging tube groups form a plurality of channels connected in parallel and are collected and connected to the distributor of the heat exchanger through one capillary tube.

8. The heat exchanger of an air conditioner according to any one of claims 2 to 7, wherein the refrigerant main inlet pipe and the heat exchanger body are both disposed facing the wind in a vertical direction, and the plurality of branch pipes and the branch flow pipes are both disposed in a horizontal direction.

9. An outdoor unit of an air conditioner, characterized in that the air conditioner comprises the heat exchanger of the air conditioner according to any one of claims 1 to 8.

10. An air conditioner characterized by comprising an indoor unit of an air conditioner and an outdoor unit of an air conditioner according to claim 9.