CN218722229U - Heat exchanger for air conditioner and air conditioner - Google Patents

Abstract

The application relates to the technical field of air conditioning equipment, and discloses a heat exchanger for an air conditioner, which comprises: the heat exchange main body is constructed into a tetragonal structure and comprises a plurality of heat exchange pipelines which are arranged in parallel and used for circulating a refrigerant, and each heat exchange pipeline is provided with a first end and a second end; the flow dividing assembly is arranged at the refrigerant input end of the heat exchange pipeline in a communicating manner and is positioned between the first end and the second end; the collecting assembly is communicated with the refrigerant output end of the heat exchange pipeline and is positioned between the first end and the second end; in the refrigeration mode of the air conditioner, liquid-phase refrigerants are shunted from the shunt assembly to enter the heat exchange pipeline, and gas-phase refrigerants are converged from the flow collecting assembly and then discharged; or, in the heating mode of the air conditioner, the gas-phase refrigerant is shunted from the current collecting assembly to enter the heat exchange pipeline, and the liquid-phase refrigerant is converged from the current shunting assembly and then discharged. The application can improve the structure compactness of the heat exchanger for the air conditioner. The application also discloses an air conditioner.

Description

Heat exchanger for air conditioner and air conditioner

Technical Field

The application relates to the technical field of air conditioning equipment, for example to a heat exchanger and air conditioner for air conditioner.

Background

The finned heat exchanger is one of the most widely used heat exchange equipment for gas and liquid heat exchangers, and the purpose of enhancing heat transfer is generally achieved by additionally arranging fins on a heat exchange tube. The finned heat exchanger is widely applied to air conditioning equipment. For large-scale commercial air conditioners, such as a ducted air conditioner and the like, the welding end of a traditional heat exchanger pipeline is only provided with one end, liquid inlet and gas outlet of the heat exchanger need to be arranged and designed within the width range of a heat radiating fin of the heat exchanger, the fin type heat exchanger is generally provided with a plurality of U-shaped heat exchange tubes connected in parallel, and a refrigerant flowing out of a throttling device needs to be distributed into the heat exchange tubes through a flow dividing device.

The heat exchanger comprises a heat exchange device and a flow dividing device, wherein the heat exchange device comprises a plate-shaped body and a heat exchange pipeline arranged in the plate-shaped body, the plate-shaped body comprises fins, the heat exchange pipeline penetrates through the fins to form a plurality of loops, the flow dividing device comprises a transition pipe, a flow dividing head and a capillary pipe, one end of the capillary pipe is connected with the flow dividing head, the other end of the capillary pipe is connected with the transition pipe, and the transition pipe is connected with the heat exchange pipeline. The refrigerant enters the flow dividing head from the input header pipe, then is divided into a plurality of capillary tubes by the flow dividing head, then enters the transition pipe from the capillary tubes, and finally enters the heat exchange pipeline from the transition pipe. The gas collecting device and the flow dividing device of the heat exchanger are arranged at the same end of the plate-shaped body.

In the process of implementing the embodiments of the present disclosure, it is found that at least the following problems exist in the related art:

the heat exchange device is of a plate-shaped structure, and airflow flows in from one side of the fin gap and flows out from the other side; the flow dividing device and the gas collection device are arranged at one end of the plate-shaped structure. Such heat transfer device structure is loose and the size is big, and heat exchange efficiency is poor.

SUMMERY OF THE UTILITY MODEL

The following presents a simplified summary in order to provide a basic understanding of some aspects of the disclosed embodiments. This summary is not an extensive overview nor is intended to identify key/critical elements or to delineate the scope of such embodiments but rather as a prelude to the more detailed description that is presented later.

The embodiment of the disclosure provides a heat exchanger for an air conditioner and the air conditioner, so that the structural compactness of the heat exchanger is improved, the space design of a flow distribution assembly and a flow collection assembly is optimized, and the heat exchange efficiency is improved.

In some embodiments, the heat exchanger for an air conditioner includes: the heat exchange device comprises a heat exchange main body, a heat exchanger and a heat exchanger, wherein the heat exchange main body comprises a plurality of heat exchange pipelines which are arranged in parallel and are used for circulating a refrigerant, and each heat exchange pipeline is provided with a first end and a second end; the flow dividing assembly is arranged at the refrigerant input end of the heat exchange pipeline in a communicating manner and is positioned between the first end and the second end; the collecting assembly is communicated with the refrigerant output end of the heat exchange pipeline and is positioned between the first end and the second end; in the refrigeration mode of the air conditioner, liquid-phase refrigerants are shunted from the shunting assembly and enter the heat exchange pipeline, and gas-phase refrigerants are converged from the current collecting assembly and then discharged; or, in the heating mode of the air conditioner, the gas-phase refrigerant is shunted from the flow collecting assembly to enter the heat exchange pipeline, and the liquid-phase refrigerant is converged from the shunt assembly and then discharged.

In some embodiments, the heat exchange pipeline includes a first pipe set located at the upper layer and a second pipe set located at the lower layer, wherein a first refrigerant input end of the first pipe set is disposed at the first end, a first refrigerant output end of the first pipe set is disposed at the first end, a second refrigerant input end of the second pipe set is disposed at the second end, and a second refrigerant output end of the second pipe set is disposed at the second end; the flow dividing assembly comprises a main flow divider, a first branch flow divider and a second branch flow divider, wherein the first branch flow divider and the second branch flow divider are respectively communicated with the main flow divider; the flow collecting assembly comprises a main flow collector, a first branch flow collector and a second branch flow collector, wherein the first branch flow collector and the second branch flow collector are respectively communicated with the main flow collector, the inflow end of the first branch flow collector is communicated with the first refrigerant output end, and the inflow end of the second branch flow collector is communicated with the second refrigerant output end.

In some embodiments, the first tube bank comprises a plurality of first heat exchange tubes extending transversely of the heat exchange body, the first flow splitter comprises a first flow main and a plurality of first flow branch tubes communicating with the first flow main, and each first flow branch tube is connected to one of the first heat exchange tubes; the second tube group comprises a plurality of second heat exchange tubes extending along the transverse direction of the heat exchange main body, the second branch flow divider comprises a second branch main tube and a plurality of second branch flow branch tubes communicated with the second branch main tube, and each second branch flow branch tube is connected with one second heat exchange tube.

In some embodiments, a heat exchanger for an air conditioner, further comprises: the first throttling piece is arranged on the first branch pipe and used for adjusting the flow of a refrigerant flowing into the first heat exchange pipe; and the second throttling element is arranged on the second branch pipe and is used for adjusting the flow of the refrigerant flowing into the second heat exchange pipe.

In some embodiments, the heat exchanger for an air conditioner further includes: the first exhaust pipeline is arranged at the top end of the first branch main pipe, communicated with the collecting assembly and used for guiding out the gas-phase refrigerant in the first branch flow divider; and the second exhaust pipeline is arranged at the top end of the second branch flow main pipe, is communicated with the collecting assembly and is used for guiding out the gas-phase refrigerant in the second branch flow divider.

In some embodiments, the main splitter comprises: the inner part of the shunting shell is provided with a liquid storage cavity; the main inflow pipe is arranged on the flow dividing shell and communicated with the liquid storage cavity; the first branch pipe is arranged in the branch shell, is communicated between the branch shell and the first branch pipe, and is used for guiding the refrigerant flowing into the liquid storage cavity to the first branch pipe; the second branch flow pipe is arranged in the flow distribution shell, is communicated between the flow distribution shell and the second branch flow distributor, and is used for guiding the refrigerant flowing into the liquid storage cavity to the second branch flow distributor; wherein the main inlet pipe and the first and second shunt pipes are disposed on different sides of the shunt housing.

In some embodiments, a heat shield is disposed between the first tube bank and the second tube bank.

In some embodiments, the air conditioner includes a refrigerant circulation loop formed by a compressor, a four-way valve, an outdoor heat exchanger, a throttle valve, and an indoor heat exchanger, wherein the indoor heat exchanger is a heat exchanger for the air conditioner as described above.

In some embodiments, the flow dividing assembly is in communication with the outdoor heat exchanger and the flow collecting assembly is in communication with the compressor when the air conditioner is in the cooling mode.

In some embodiments, the flow dividing assembly is in communication with the compressor and the flow collecting assembly is in communication with the outdoor heat exchanger when the air conditioner is in a heating mode.

The heat exchanger for the air conditioner and the air conditioner provided by the embodiment of the disclosure can realize the following technical effects:

through all setting up reposition of redundant personnel subassembly and current collection subassembly between the first end of heat transfer main part and second end, make full use of the space between first end and the second end. The refrigerant input end is arranged at the first end and/or the second end, and the refrigerant output end is arranged at the first end and/or the second end, so that the first end and the second end of the heat exchanger can form an approximately closed square annular structure through the connection of the flow dividing assembly and the flow collecting assembly, the structural compactness of the heat exchanger for the air conditioner is improved, and the space utilization rate around the heat exchanger and the heat exchange efficiency of the air conditioner are improved.

The foregoing general description and the following description are exemplary and explanatory only and are not restrictive of the application.

Drawings

One or more embodiments are illustrated by way of example in the accompanying drawings, which correspond to the accompanying drawings and not in limitation thereof, in which elements having the same reference numeral designations are shown as like elements and not in limitation thereof, and wherein:

fig. 1 is a schematic structural diagram of a heat exchanger for an air conditioner according to an embodiment of the present disclosure;

fig. 2 is a schematic structural diagram of a heat exchanger for an air conditioner according to an embodiment of the present disclosure;

fig. 3 is a schematic structural diagram of another heat exchanger for an air conditioner according to an embodiment of the present disclosure.

Reference numerals:

100. a heat exchange body; 110. a heat exchange line; 111. a first end; 112. a second end; 113. a first tube group; 1131. a first refrigerant input end; 1132. a first refrigerant output end; 1133. a first heat exchange tube; 114. a second tube group; 1141. a second refrigerant input end; 1142. a second refrigerant output end; 1143. A second heat exchange tube;

200. a flow diversion assembly; 210. a main splitter; 211. a diverter housing; 212. a main inflow pipe; 213. A first shunt pipe; 214. a second shunt pipe; 220. a first branch diverter; 221. an outflow end of the first branch diverter; 223. a first main shunt pipe; 224. a first branch pipe; 225. a first orifice member; 230. a second branch flow divider; 231. the outflow end of the second branch flow divider; 233. a second main shunt pipe; 234. a second branch pipe; 235. a second orifice member;

300. a current collection assembly; 310. a primary current collector; 320. a first current collector; 321. an inflow end of the first current collector; 330. a second branch current collector; 331. and the inflow end of the second branch current collector.

Detailed Description

So that the manner in which the features and elements of the disclosed embodiments can be understood in detail, a more particular description of the disclosed embodiments, briefly summarized above, may be had by reference to the embodiments, some of which are illustrated in the appended drawings. In the following description of the technology, for purposes of explanation, numerous details are set forth in order to provide a thorough understanding of the disclosed embodiments. However, one or more embodiments may be practiced without these details. In other instances, well-known structures and devices may be shown in simplified form in order to simplify the drawing.

The terms "first," "second," and the like in the description and in the claims, and the above-described drawings of embodiments of the present disclosure, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged under appropriate circumstances such that embodiments of the present disclosure described herein may be made. Furthermore, the terms "comprising" and "having," as well as any variations thereof, are intended to cover non-exclusive inclusions.

In the embodiments of the present disclosure, the terms "upper", "lower", "inner", "middle", "outer", "front", "rear", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings. These terms are used primarily to better describe the disclosed embodiments and their examples and are not intended to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation. Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meanings of these terms in the embodiments of the present disclosure can be understood by those of ordinary skill in the art as appropriate.

In addition, the terms "disposed," "connected," and "secured" are to be construed broadly. For example, "connected" may be a fixed connection, a detachable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. Specific meanings of the above terms in the embodiments of the present disclosure can be understood by those of ordinary skill in the art according to specific situations.

The term "plurality" means two or more unless otherwise specified.

In the embodiment of the present disclosure, the character "/" indicates that the preceding and following objects are in an or relationship. For example, A/B represents: a or B.

The term "and/or" is an associative relationship that describes objects, meaning that three relationships may exist. For example, a and/or B, represents: a or B, or A and B.

It should be noted that, in the case of no conflict, the embodiments and features in the embodiments of the present disclosure may be combined with each other.

Fig. 1 is a schematic structural diagram of a heat exchanger for an air conditioner according to an embodiment of the present disclosure; fig. 2 is a schematic structural diagram of a heat exchanger for an air conditioner according to an embodiment of the present disclosure; fig. 3 is a schematic structural diagram of another heat exchanger for an air conditioner according to an embodiment of the present disclosure.

As shown in fig. 1 to 3, an embodiment of the present disclosure provides a heat exchanger for an air conditioner, including a heat exchange body 100, a flow dividing assembly 200, and a flow collecting assembly 300. The heat exchange body 100 includes a plurality of heat exchange pipes 110 arranged in parallel for circulating a refrigerant. Heat exchange line 110 has a first end 111 and a second end 112. The flow dividing assembly 200 is communicatively disposed at the refrigerant input end of the heat exchange pipeline 110 and located between the first end 111 and the second end 112. The collecting assembly 300 is communicatively disposed at the refrigerant output end of the heat exchange pipeline 110 and located between the first end 111 and the second end 112. In the air conditioner refrigeration mode, liquid-phase refrigerant is shunted from the shunt assembly 200 and enters the heat exchange pipeline 110, and gas-phase refrigerant is converged from the collecting assembly 300 and then discharged; or, in the air conditioner heating mode, the gas-phase refrigerant is branched from the collecting assembly 300 and enters the heat exchange pipeline 110, and the liquid-phase refrigerant is converged from the branching assembly 200 and then discharged.

Preferably, the heat exchange body 100 is constructed in a tetragonal structure such that the heat exchange body 100 forms an annular heat exchange area, wherein the inner space of the heat exchange body 100 can be used to house a compressor and a fan. Thus, the compactness of the structure of the heat exchanger for the air conditioner can be effectively improved.

Optionally, the flow dividing assembly 200 is disposed between the first end 111 and the second end 112 and connected to the refrigerant input end of the heat exchange line 110, and the collecting assembly 300 is disposed between the first end 111 and the second end 112 and communicated with the refrigerant output end of the heat exchange line 110. In the air conditioner refrigeration mode, liquid-phase refrigerant enters the heat exchange pipeline 110 from the flow dividing assembly 200, and gas-phase refrigerant is discharged from the collecting assembly 300; or, in the heating mode of the air conditioner, the gas-phase refrigerant enters the heat exchange line 110 from the collecting assembly 300, and the liquid-phase refrigerant is discharged from the flow dividing assembly 200. It should be noted that the end of the heat exchange pipeline 110 communicated with the flow dividing assembly 200 is a refrigerant input end of the heat exchange pipeline 110, and the end of the heat exchange pipeline 110 communicated with the flow collecting assembly 300 is a refrigerant output end. Therefore, an approximately closed square annular refrigerant passage can be formed, the spatial arrangement between the first end 111 and the second end 112 is optimized, and the space utilization rate around the heat exchanger is further improved.

The heat exchanger for the air conditioner provided by the embodiment of the disclosure is adopted, the shunting assembly and the collecting assembly are arranged between the first end and the second end of the heat exchange main body, the space between the first end and the second end is fully utilized, wherein the refrigerant input end is arranged at the first end and/or the second end, and the refrigerant output end is arranged at the first end and/or the second end, so that the first end and the second end of the heat exchanger can form an approximately closed square annular structure through the connection of the shunting assembly and the collecting assembly, the structural compactness of the heat exchanger for the air conditioner is improved, and the space utilization rate around the heat exchanger and the heat exchange efficiency of the heat exchanger are improved.

In some embodiments, the heat exchange pipeline 110 includes a first tube set 113 located at an upper layer and a second tube set 114 located at a lower layer, wherein a first refrigerant input end 1131 of the first tube set 113 is disposed at the first end 111, a first refrigerant output end 1132 of the first tube set 113 is disposed at the first end 111, a second refrigerant input end 1141 of the second tube set 114 is disposed at the second end 112, and a second refrigerant output end 1142 of the second tube set 114 is disposed at the second end 112. The flow dividing assembly 200 includes a main flow divider 210, and a first branch flow divider 220 and a second branch flow divider 230 respectively communicated with the main flow divider 210, wherein an outflow end 221 of the first branch flow divider 220 is communicated with a first refrigerant input end 1131, and an outflow end 231 of the second branch flow divider 230 is communicated with a second refrigerant input end 1141. The collecting assembly 300 includes a main collector 310, and a first branch collector 320 and a second branch collector 330 respectively communicated with the main collector 310, wherein an inflow end 321 of the first branch collector 320 is communicated with a first refrigerant output end 1132, and an inflow end 331 of the second branch collector 330 is communicated with a second refrigerant output end 1142.

Optionally, the heat exchange pipelines of the first end 111 and the second end 112 are both provided with free welding interfaces, so that the flow path of the heat exchange pipeline 110 can be freely designed.

In this embodiment, the first branch splitter 220 is communicated with the first refrigerant input end 1131 of the first tube set 113 at the first end 111, and the first refrigerant output end 1132 of the first tube set 113 at the first end 111 is communicated with the first branch collector 320, so as to form a refrigerant flowing passage. Meanwhile, the second branch flow divider 230 is communicated with a second refrigerant input end 1141 of the second tube group 114 at the second end 112, and a second refrigerant output end 1142 of the second tube group 114 at the second end 112 is communicated with the second branch flow collector 330, so as to form a circulation passage of another refrigerant. Therefore, free welding interfaces are arranged on the heat exchange pipelines of the first end 111 and the second end 112, so that different flow paths are flexibly formed on the heat exchange pipeline 110, the layered design of the first pipe group 113 and the second pipe group 114 is favorable for the optimal trend layout of the pipelines, the waste of unnecessary pipeline length is avoided, and the cost of the whole machine is saved.

In some embodiments, the first tube bank 113 includes a plurality of first heat exchange tubes 1133 extending laterally along the heat exchange body 100. The first branch flow divider 220 includes a first branch flow main pipe 223 and a plurality of first branch flow pipes 224 communicating with the first branch flow main pipe 223, and one first heat exchange pipe 1133 is connected to each of the first branch flow pipes 224. The second tube group 114 includes a plurality of second heat exchange tubes 1143 extending laterally of the heat exchange body 100. The second branch flow divider 230 includes a second branch flow main pipe 233 and a plurality of second branch flow pipes 234 communicating with the second branch flow main pipe 233, and each of the second branch flow pipes 234 is connected to one of the second heat exchange pipes 1143.

In the present embodiment, the refrigerant passes through the main flow divider 210 and then flows into the first branch flow divider 220 and the second branch flow divider 230, respectively. When the air conditioner refrigerates, the flow process of the refrigerant in the heat exchanger is as follows: the refrigerant is first divided into two paths by the main flow divider 210, and one path of the refrigerant flows out through the outflow end 221 of the first branch flow divider 220 and enters each first heat exchange tube 1133 of the first tube group 113 through the first refrigerant input end 1131. After exchanging heat in the first heat exchange tube 1133, the refrigerant is discharged to the inflow end 321 of the first current collector 320 through the first refrigerant output end 1132; the other path flows out through the outflow end 231 of the second branch flow divider 230 and enters the second heat exchange tube 1143 through the second refrigerant input end 1141. After exchanging heat in the second heat exchange tube 1143, the refrigerant is discharged to the inflow end 331 of the second branch collector 330 through the second refrigerant output end 1142. When the air conditioner performs cooling, the refrigerant flow process is opposite to the refrigerant flow process in the heat exchanger during cooling of the air conditioner, that is, the refrigerant first enters the first branch collector 320 and the second branch collector 330 from the main collector 310, and then is divided into two paths of refrigerants, and the two paths of refrigerants respectively flow into the first branch flow divider 220 through the first tube group 113 and enter the second branch flow divider 230 through the second tube group 114, and then are converged in the main flow divider 210.

Optionally, the heat exchange pipe 110 further includes a fin disposed between two adjacent first heat exchange pipes 1133 and between two adjacent second heat exchange pipes 1143. The air flowing direction through the fins is perpendicular to the flowing direction of the refrigerant flowing through the heat exchange pipeline 110, and the heat released by the refrigerant in the heat exchange pipeline 110 is taken away through the heat dissipation fins and the air flowing.

Optionally, the heat exchange pipeline 110 is made of an aluminum alloy material or a copper material. Optionally, the fin is an aluminum alloy with a brazing compound layer on the surface. Therefore, the heat exchange main body has the advantages of light weight, high heat exchange efficiency and the like.

As shown in connection with fig. 3, in some embodiments, the heat exchanger for an air conditioner further includes a first throttling member 225 and a second throttling member 235. The first throttling part 225 is disposed at the first branch pipe 224 for regulating the flow of the refrigerant flowing into the first heat exchanging pipe 1133. The second throttling element 235 is disposed on the second shunt pipe 234 for adjusting the flow rate of the refrigerant flowing into the second heat exchange pipe 1143.

In this embodiment, the first throttle 225 can adjust the flow rate of the refrigerant flowing into the first heat exchange tube 1133. The second throttling element 235 can adjust the flow rate of the refrigerant flowing into the second heat exchanging pipe 1143. Therefore, the flow rate of the refrigerant required by the first heat exchange tube 1133 can be flexibly adjusted through the first throttling element 225 according to the actual requirement of the heat exchanger, and the flow rate of the refrigerant required by the second heat exchange tube 1143 can be flexibly adjusted through the second throttling element 235, which is beneficial to improving the heat exchange performance of the heat exchanger.

In some embodiments, the heat exchanger for an air conditioner further includes a first exhaust line and a second exhaust line. And a first exhaust pipeline disposed at the top end of the first branch main pipe 223, communicated with the collecting assembly 300, and used for guiding out the gas-phase refrigerant in the first branch flow divider 220. And a second exhaust pipeline disposed at the top end of the second branch main pipe 233, communicated with the collecting assembly 300, and used for guiding out the gas-phase refrigerant in the second branch flow divider 230.

In this embodiment, when the air conditioner performs cooling, a certain amount of gas-phase refrigerant may be mixed into the refrigerant flowing into the first branch flow divider 220 and/or the second branch flow divider 230 through the main flow divider 210, or the liquid refrigerant may be flashed at the moment of flowing into the first branch main pipe 223/the second branch main pipe 233 to generate gas refrigerant. The gaseous refrigerant tends to flow toward the upper portion of the first and second branch main pipes 223 and 233 due to the nature of the gaseous refrigerant itself. The gaseous refrigerants can be guided out through the first exhaust pipeline arranged at the top end of the first main branch pipe 223 and the second exhaust pipeline arranged at the top end of the second main branch pipe 233, so that the gaseous refrigerants are prevented from flowing into the first heat exchange pipe 1133/the second heat exchange pipe 1143, and the heat exchange efficiency of the heat exchanger is improved.

In some embodiments, the main splitter 210 includes a splitter housing 211, a main inflow tube 212, a first splitter tube 213, and a second splitter tube 214. A reservoir is disposed within the diverter housing 211. The main inflow pipe 212 is disposed in the flow dividing housing 211 and communicates with the reservoir chamber. The first branch pipe 213 is disposed in the branch housing 211, and is communicated between the branch housing 211 and the first branch pipe 220, so as to guide the refrigerant flowing into the liquid storage cavity to the first branch pipe 220. The second branch pipe 214 is disposed in the branch housing 211, and is communicated between the branch housing 211 and the second branch pipe 230, for guiding the refrigerant flowing into the liquid storage cavity to the second branch pipe 230. Wherein the main inflow pipe 212 is provided on a different side from the flow dividing housing 211 than the first flow dividing pipe 213 and the second flow dividing pipe 214.

When the air conditioner refrigerates, the flow distribution assembly 200 is used for distributing liquid-phase refrigerants, and the flow collection assembly 300 is used for collecting gas-phase refrigerants; when the air conditioner heats, the flow dividing assembly 200 is used for converging liquid-phase refrigerant, and the flow collecting assembly 300 is used for dividing gas-phase refrigerant.

Therefore, when the air conditioner applied to the heat exchanger performs cooling, the refrigerant flows into the reservoir through the main inflow pipe 212 to first collect and buffer the liquid-phase refrigerant, and then is split according to the requirements of the first tube group 113 and the second tube group 114. The first branch flow pipe 213 and the second branch flow pipe 214 are used for shunting the first branch flow pipe 220 and the second branch flow pipe 230, so that shunting is more uniform, the shunting assembly 200 is prevented from shunting the refrigerant unevenly, and the heat exchange efficiency of the heat exchanger is influenced.

Likewise, primary current collector 310 may include a current collecting housing. And a collecting cavity is arranged in the collecting shell. When an air conditioner applied to a heat exchanger performs heating, the manifold may first collect and buffer a gas-phase refrigerant, and then may split the gas-phase refrigerant into the first branch collector 320 and the second branch collector 330.

In some embodiments, a thermal shield is disposed between the first tube section 113 and the second tube section 114. As can be seen from the figure, the refrigerant flows in the first tube group 113 and the second tube group 114 in opposite directions. In order to avoid heat exchange between the first heat exchange tube 1133 adjacent to the second tube group 114 and the second heat exchange tube 1143 adjacent to the first tube group 113, a heat insulating plate is provided between the first tube group 113 and the second tube group 114.

The embodiment of the present disclosure provides an air conditioner, which includes a refrigerant circulation loop formed by a compressor, a four-way valve, a condenser, a throttle valve, and an evaporator, where the condenser or the evaporator is the heat exchanger for the air conditioner.

The air conditioner comprises the heat exchanger for the air conditioner, the flow dividing assembly and the flow collecting assembly are arranged between the first end and the second end of the heat exchange main body, the space between the first end and the second end is fully utilized, the refrigerant input end is arranged at the first end and/or the second end, the refrigerant output end is arranged at the first end and/or the second end, and therefore the first end and the second end of the heat exchanger can form an approximately closed square annular structure through the connection of the flow dividing assembly and the flow collecting assembly, the structural compactness of the heat exchanger for the air conditioner is improved, and the space utilization rate around the heat exchanger and the heat exchange efficiency of the heat exchanger are improved.

In some embodiments, in the air conditioner heating mode, the heat exchanger for the air conditioner is an evaporator. The flow splitting assembly 200 is in communication with a condenser and the flow collecting assembly 300 is in communication with a compressor.

In some embodiments, in the air conditioner cooling mode, the heat exchanger for the air conditioner is a condenser. The flow splitting assembly 200 is in communication with the compressor and the flow collecting assembly 300 is in communication with the evaporator.

The above description and drawings sufficiently illustrate embodiments of the disclosure to enable those skilled in the art to practice them. Other embodiments may include structural and other changes. The examples merely typify possible variations. Individual components and functions are optional unless explicitly required, and the sequence of operations may vary. Portions and features of some embodiments may be included in or substituted for those of others. The embodiments of the present disclosure are not limited to the structures that have been described above and shown in the drawings, and various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims (10)

1. A heat exchanger for an air conditioner, comprising:

the heat exchange device comprises a heat exchange main body (100) and a heat exchange device, wherein the heat exchange main body comprises a plurality of heat exchange pipelines (110) which are arranged in parallel and used for circulating a refrigerant, and each heat exchange pipeline is provided with a first end (111) and a second end (112);

the flow dividing assembly (200) is communicated with a refrigerant input end of the heat exchange pipeline (110) and is positioned between the first end (111) and the second end (112);

the collecting assembly (300) is communicated with the refrigerant output end of the heat exchange pipeline (110) and is positioned between the first end (111) and the second end (112);

in the refrigeration mode of the air conditioner, liquid-phase refrigerants are shunted from the shunting assembly (200) and enter the heat exchange pipeline (110), and gas-phase refrigerants are converged from the collecting assembly (300) and then discharged; or, in the heating mode of the air conditioner, the gas-phase refrigerant is branched from the collecting assembly (300) and enters the heat exchange pipeline (110), and the liquid-phase refrigerant is converged from the branching assembly (200) and then discharged.

2. The heat exchanger of claim 1,

the heat exchange pipeline (110) comprises a first pipe group (113) located at an upper layer and a second pipe group (114) located at a lower layer, wherein a first refrigerant input end (1131) of the first pipe group (113) is arranged at the first end (111), a first refrigerant output end (1132) of the first pipe group (113) is arranged at the first end (111), a second refrigerant input end (1141) of the second pipe group (114) is arranged at the second end (112), and a second refrigerant output end (1142) of the second pipe group (114) is arranged at the second end (112);

the flow dividing assembly (200) comprises a main flow divider (210), a first branch flow divider (220) and a second branch flow divider (230) which are respectively communicated with the main flow divider (210), wherein the outflow end (221) of the first branch flow divider (220) is communicated with the first refrigerant input end (1131), and the outflow end (231) of the second branch flow divider (230) is communicated with the second refrigerant input end (1141);

the collecting assembly (300) comprises a main collector (310), and a first branch collector (320) and a second branch collector (330) which are respectively communicated with the main collector (310), wherein an inflow end (321) of the first branch collector (320) is communicated with the first refrigerant output end (1132), and an inflow end (331) of the second branch collector (330) is communicated with the second refrigerant output end (1142).

3. The heat exchanger of claim 2,

the first tube group (113) comprises a plurality of first heat exchange tubes (1133) extending in the transverse direction of the heat exchange body (100), the first branch flow divider (220) comprises a first branch main tube (223) and a plurality of first branch flow tubes (224) communicating with the first branch main tube (223), and each first branch flow tube (224) is connected with one of the first heat exchange tubes (1133);

the second tube group (114) includes a plurality of second heat exchange tubes (1143) extending in a transverse direction of the heat exchange body (100), the second branch flow divider (230) includes a second branch main tube (233) and a plurality of second branch flow tubes (234) communicating with the second branch main tube (233), and each second branch flow tube (234) is connected to one of the second heat exchange tubes (1143).

4. The heat exchanger of claim 3, further comprising:

a first throttling member (225) disposed in the first branch pipe (224) for adjusting the flow rate of the refrigerant flowing into the first heat exchange pipe (1133);

and the second throttling element (235) is arranged on the second branch flow pipe (234) and is used for adjusting the flow rate of the refrigerant flowing into the second heat exchange pipe (1143).

5. The heat exchanger of claim 3, further comprising:

the first exhaust pipeline is arranged at the top end of the first branch main pipe (223), communicated with the collecting assembly (300) and used for guiding out a gas-phase refrigerant in the first branch flow divider (220);

and the second exhaust pipeline is arranged at the top end of the second branch main pipe (233), communicated with the collecting assembly (300) and used for guiding out the gas-phase refrigerant in the second branch flow divider (230).

6. The heat exchanger according to claim 3, characterized in that the main flow splitter (210) comprises:

the shunt shell (211) is internally provided with a liquid storage cavity;

a main inflow pipe (212) arranged on the flow dividing shell (211) and communicated with the liquid storage cavity;

the first branch pipe (213) is arranged in the branch shell (211), is communicated between the branch shell (211) and the first branch pipe (220), and is used for guiding the refrigerant flowing into the liquid storage cavity to the first branch pipe (220);

the second branch flow pipe (214) is arranged in the flow dividing shell (211), is communicated between the flow dividing shell (211) and the second branch flow divider (230), and is used for guiding the refrigerant flowing into the liquid storage cavity to the second branch flow divider (230);

wherein the main inlet pipe (212) and the first and second shunt pipes (213, 214) are disposed on different sides of the shunt housing (211).

7. The heat exchanger according to any of claims 2 to 6, characterized in that a heat shield is provided between the first tube bank (113) and the second tube bank (114).

8. An air conditioner, comprising a refrigerant circulation loop formed by a compressor, a four-way valve, an outdoor heat exchanger, a throttle valve and an indoor heat exchanger, wherein the indoor heat exchanger is the heat exchanger for the air conditioner as claimed in any one of claims 1 to 7.

9. The air conditioner according to claim 8,

when the air conditioner is in a refrigeration mode, the flow dividing assembly (200) is communicated with the outdoor heat exchanger, and the flow collecting assembly (300) is communicated with the compressor.

10. The air conditioner according to claim 8,

when the air conditioner is in a heating mode, the flow dividing assembly (200) is communicated with the compressor, and the flow collecting assembly (300) is communicated with the outdoor heat exchanger.

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