CN114279237A - Heat exchanger and household appliance - Google Patents
Heat exchanger and household appliance Download PDFInfo
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- CN114279237A CN114279237A CN202111683195.0A CN202111683195A CN114279237A CN 114279237 A CN114279237 A CN 114279237A CN 202111683195 A CN202111683195 A CN 202111683195A CN 114279237 A CN114279237 A CN 114279237A
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Abstract
The invention discloses a heat exchanger and a household appliance, wherein a plurality of communicating cavities are arranged in a collecting pipe, two connecting ports are arranged on each communicating cavity, a plurality of heat exchange pipes can be respectively inserted into the connecting ports and then are brazed, so that the welding automation degree of the finned tube heat exchanger is improved, each communicating cavity is communicated with one end of the same side of the two heat exchange pipes, each two adjacent heat exchange pipes are communicated through one communicating cavity to replace a U-shaped elbow, then a refrigerant in a shunting cavity is conveyed into the corresponding communicating cavity through a plurality of shunting ports on the shunting cavity, and then each communicating cavity is communicated with the plurality of heat exchange pipes, so that a plurality of heat exchange flow paths which are mutually connected in parallel are formed, and the plurality of heat exchange pipes have longer heat exchange strokes and are provided with a plurality of heat exchange flow paths which are arranged in parallel, the heat exchange efficiency and efficiency of the heat exchanger are ensured, and the heat exchanger with high automation degree and high heat exchange efficiency is provided.
Description
Technical Field
The invention relates to the field of electric appliances, in particular to a heat exchanger and a household electric appliance.
Background
The finned tube heat exchanger is characterized in that a plurality of heat exchange tubes are arranged in the finned tube heat exchanger side by side, each heat exchange tube is processed into a U shape through a bending process, in order to enable the plurality of heat exchange tubes to be communicated and then form a heat exchange flow path for refrigerant flowing, the end parts of every two adjacent U-shaped tubes need to be welded through the U-shaped elbows through hot-melt welding, the hot-melt welding needs manual welding, the degree of automation is quite low, and in order to enable the heat exchange efficiency to be higher, two sets of heat exchange flow paths are arranged in parallel side by side.
In order to realize automation of the existing heat exchange tube, the heat exchange tube is provided with a plurality of straight tubes in parallel, and two collecting pipes are respectively arranged at two ends of each straight tube, so that the parallel connection of a plurality of parallel heat exchange tubes is realized, but the quantity of required refrigerants is large, the heat exchange stroke is short, the heat exchange efficiency is not very high, and the mode can not realize heat exchange flow paths of two parallel loops when the existing heat exchanger is in a U shape; still communicate many heat exchange tubes with U-shaped finned tube heat exchanger through set up many connecting pipes in the one end of heat exchange tube, replace current U-shaped elbow to connect, but still degree of automation is low like this, consequently when facing the heat exchange tube for the U-shaped, how can realize replacing the design of two at least heat transfer flow paths now, is a problem that awaits the opportune moment and solves.
Disclosure of Invention
The invention mainly aims to provide a heat exchanger, and aims to provide a heat exchanger which is high in automation degree and high in heat exchange efficiency.
In order to achieve the above object, the heat exchanger provided by the present invention includes a plurality of heat exchange tubes arranged side by side, the plurality of heat exchange tubes arranged side by side are connected by a communication structure, so that at least some of the heat exchange tubes in the plurality of heat exchange tubes are arranged in parallel, the communication structure includes at least one collecting pipe, the collecting pipe is arranged at one end of the plurality of heat exchange tubes, a plurality of communication cavities and a plurality of shunting cavities are formed in the collecting pipe, at least two first connection ports corresponding to two ends of two heat exchange tubes are arranged on each communication cavity, a plurality of shunting ports are arranged on each shunting cavity, and each shunting port is communicated with a corresponding communication cavity, so that the collecting pipe can arrange at least some of the heat exchange tubes in parallel.
Optionally, the plurality of flow dividing cavities are positioned on one side of the plurality of communication cavities, which faces away from the plurality of heat exchange tubes;
a plurality of switching cavities are formed in one side, close to the plurality of heat exchange tubes, of the collecting tube, a second connecting port correspondingly connected with one end of one heat exchange tube is arranged on each switching cavity, and each switching cavity is communicated with the corresponding shunting cavity through one shunting port.
Optionally, the collecting pipe is further provided with a refrigerant inlet and a refrigerant outlet;
the plurality of flow dividing cavities comprise a first flow dividing cavity and a second flow dividing cavity, the first flow dividing cavity is communicated with the refrigerant inlet, and the second flow dividing cavity is communicated with the refrigerant outlet.
Optionally, the second branch chamber is further provided with a junction port, and the junction port is communicated with one of the adapter chambers;
the collecting pipe is also provided with a converging cavity, the converging cavity is provided with the refrigerant outlet, the converging cavity is communicated with the other switching cavity, and the switching cavity communicated with the converging port and the switching cavity communicated with the converging cavity are communicated with the communicating cavity through at least one heat exchange pipe.
Optionally, a plurality of the diversion ports on the second diversion cavity are adjacently arranged;
the collecting pipe is also provided with a plurality of buffer cavities, the buffer cavities are arranged between the communication cavities and the second branch cavity, one side of each buffer cavity is communicated with one of the switching cavities, and the other side of each buffer cavity is communicated with the second branch cavity through one of the branch ports.
Optionally, a first partition portion is further formed in the second flow dividing cavity to partition the second flow dividing cavity into two chambers, the junction port is disposed in one of the two chambers, and the plurality of flow dividing ports are disposed in the other of the two chambers;
the first partition part is provided with two diversion ports communicated with the chambers, and the diversion ports face the diversion ports.
Optionally, a second partition part is further disposed in the chamber where the plurality of branch ports are located, two side edges of the second partition part are respectively connected with two side walls of the chamber, the two side walls of the chamber are oppositely disposed, two ends of the second partition part are respectively formed with a gap with the inner wall of the chamber, so that a circulation channel is formed between the peripheral side of the second partition part and the inner wall of the chamber, and the plurality of branch ports are located on the same side of the second partition part.
Optionally, two collecting pipes are arranged, and the two collecting pipes are respectively arranged at two ends of the plurality of heat exchange pipes;
the plurality of heat exchange tubes comprise a plurality of heat exchange tube sets, and each heat exchange tube set comprises at least two heat exchange tubes;
each communication cavity is provided with at least four first connecting ports correspondingly connected with two ends of the heat exchange tube group, and each heat exchange tube group is communicated with two different communication cavities on the two collecting pipes;
at least two branch flow ports are arranged on each branch flow cavity, and the two branch flow ports are communicated with the same corresponding communication cavity, so that the plurality of heat exchange tubes of each heat exchange tube set are arranged in parallel.
Optionally, the two collecting pipes are further provided with a refrigerant inlet and a refrigerant outlet;
the two collecting pipes are also provided with a conducting cavity, wherein one conducting cavity is provided with two third connecting ports which correspond to the two ends of the two heat exchange pipes and are connected with the two ends of the two heat exchange pipes, so that the two heat exchange pipes are connected in series and communicated.
Optionally, transition cavities are formed in the two collecting pipes, a communication port corresponding to one end of one heat exchange pipe is arranged on each transition cavity, and a refrigerant inlet is further formed in each transition cavity.
The invention also provides a household appliance, which comprises the heat exchanger, wherein the heat exchanger comprises a plurality of heat exchange tubes arranged side by side, the plurality of heat exchange tubes arranged side by side are connected through a communicating structure, so that at least part of the heat exchange tubes in the plurality of heat exchange tubes are arranged in parallel, the communication structure comprises at least one collecting pipe, the collecting pipe is arranged at one end of the heat exchange pipes, a plurality of communicating cavities and a plurality of shunting cavities are formed in the collecting pipe, at least two first connecting ports correspondingly connected with two ends of the two heat exchange pipes are arranged on each communicating cavity, a plurality of shunting ports are arranged on each shunting cavity, each shunting port is communicated with one corresponding communicating cavity, so that the header can arrange at least some of the plurality of heat exchange tubes in a parallel arrangement.
Optionally, the household appliance comprises an air conditioner.
In the technical scheme provided by the invention, the heat exchanger comprises a plurality of heat exchange tubes arranged side by side, the plurality of heat exchange tubes arranged side by side are connected through a communication structure so that at least part of the heat exchange tubes in the plurality of heat exchange tubes are arranged in parallel, the communication structure comprises at least one collecting pipe, the collecting pipe is arranged at one end of the plurality of heat exchange tubes, a plurality of communication cavities and a plurality of shunting cavities are formed in the collecting pipe, at least two first connecting ports correspondingly connected with two ends of the two heat exchange tubes are arranged on each communication cavity, a plurality of shunting ports are arranged on each shunting cavity, each shunting port is communicated with the corresponding communication cavity, so that the collecting pipe can arrange at least part of the heat exchange tubes in parallel, and two connecting ports are arranged on each communication cavity by arranging the plurality of communication cavities in the collecting pipe, the heat exchange tubes can be respectively inserted into the connecting ports and then brazed, so that the welding automation degree is improved, each communicating cavity is communicated with one end of the same side of the two heat exchange tubes, every two adjacent heat exchange tubes are communicated through one communicating cavity, then the refrigerant in the shunting cavity is conveyed to the corresponding communicating cavity through the shunting ports on the shunting cavity, and then the communicating cavities are communicated with the heat exchange tubes, so that a plurality of heat exchange flow paths which are arranged in parallel are formed, and the heat exchange efficiency and the efficiency of the heat exchanger are also ensured due to the fact that the heat exchange tubes have long heat exchange strokes and a plurality of heat exchange flow paths which are arranged in parallel, so that the heat exchanger is high in automation degree and high in heat exchange efficiency.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is a schematic perspective view of one embodiment of a heat exchanger provided in the present invention;
FIG. 2 is a perspective view of a partial structure of the heat exchanger of FIG. 1;
FIG. 3 is a schematic cross-sectional view of the heat exchanger B-B of FIG. 2;
FIG. 4 is a schematic cross-sectional view of the heat exchanger A-A of FIG. 2;
FIG. 5 is a schematic perspective view of another embodiment of a heat exchanger provided by the present invention;
FIG. 6 is a perspective view of a partial structure of the heat exchanger of FIG. 5;
FIG. 7 is a schematic cross-sectional view of the heat exchanger C-C of FIG. 6;
FIG. 8 is a schematic cross-sectional view of the heat exchanger B-B of FIG. 6;
FIG. 9 is a schematic cross-sectional view of the heat exchanger A-A of FIG. 6;
fig. 10 is a schematic plan view of another embodiment of the heat exchanger provided by the present invention.
The reference numbers illustrate:
| reference numerals | Name (R) | Reference numerals | Name (R) | |
| 100 | |
26 | |
|
| 1 | |
27 | |
|
| 2 | Collecting pipe | | Converging port | |
| 21 | |
31 | |
|
| 22 | |
2421 | |
|
| 23 | Communicating cavity | c | |
|
| 24 | |
32 | Second partition part | |
| a | |
10 | Heat |
|
| 25 | |
28 | Conducting |
|
| 241 | |
29 | |
|
| 242 | Second shunting cavity |
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that, if directional indications (such as up, down, left, right, front, and back … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative positional relationship between the components, the movement situation, and the like in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indications are changed accordingly.
In addition, if there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" appearing throughout includes three juxtapositions, exemplified by "A and/or B" including either A or B or both A and B. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
The finned tube heat exchanger is characterized in that a plurality of heat exchange tubes are arranged in the finned tube heat exchanger side by side, each heat exchange tube is processed into a U shape through a bending process, in order to enable the plurality of heat exchange tubes to be communicated and then form a heat exchange flow path for refrigerant flowing, the end parts of every two adjacent U-shaped tubes need to be welded through the U-shaped elbows through hot-melt welding, the hot-melt welding needs manual welding, the degree of automation is quite low, and in order to enable the heat exchange efficiency to be higher, two sets of heat exchange flow paths are arranged in parallel side by side. In order to realize automation of the existing heat exchange tube, the heat exchange tube is provided with a plurality of straight tubes in parallel, and two collecting pipes are respectively arranged at two ends of each straight tube, so that the parallel connection of a plurality of parallel heat exchange tubes is realized, but the quantity of required refrigerants is large, the heat exchange stroke is short, the heat exchange efficiency is not very high, and the mode can not realize heat exchange flow paths of two parallel loops when the existing finned tube heat exchanger is U-shaped; still communicate many heat exchange tubes with U-shaped finned tube heat exchanger through set up many connecting pipes in the one end of heat exchange tube, replace current U-shaped elbow to connect, but still degree of automation is low like this, consequently when facing the heat exchange tube for the U-shaped, how can realize replacing the design of two at least heat transfer flow paths now, is a problem that awaits the opportune moment and solves.
In order to solve the above problems, the present invention provides a heat exchanger 100, and fig. 1 to 10 illustrate an embodiment of the heat exchanger 100 according to the present invention.
Referring to fig. 1 to 4, the heat exchanger 100 includes a plurality of heat exchange tubes 1 arranged side by side, the plurality of heat exchange tubes 1 arranged side by side are connected by a communication structure, so that at least part of the heat exchange tubes 1 in the plurality of heat exchange tubes 1 are arranged in parallel, the communication structure comprises at least one collecting pipe 2, the collecting pipe 2 is arranged at one end of the plurality of heat exchange pipes 1, a plurality of communicating cavities 23 and a plurality of shunting cavities 24 are formed in the collecting pipe 2, at least two first connecting ports correspondingly connected with two ends of the two heat exchange pipes 1 are arranged on each communicating cavity 23, a plurality of shunting ports a are arranged on each shunting cavity 24, each shunting port a is communicated with one corresponding communicating cavity 23, so that the collecting pipe 2 can arrange at least part of the heat exchange pipes 1 in the plurality of heat exchange pipes 1 in parallel.
In the technical scheme provided by the invention, a heat exchanger 100 comprises a plurality of heat exchange tubes 1 arranged side by side, the plurality of heat exchange tubes 1 arranged side by side are connected through a communication structure, so that at least part of the heat exchange tubes 1 in the plurality of heat exchange tubes 1 are arranged in parallel, the communication structure comprises at least one collecting pipe 2, the collecting pipe 2 is arranged at one end of the plurality of heat exchange tubes 1, a plurality of communication cavities 23 and a plurality of shunting cavities 24 are formed in the collecting pipe 2, each communication cavity 23 is provided with at least two first connecting ports correspondingly connected with two ends of two heat exchange tubes 1, each shunting cavity 24 is provided with a plurality of shunting ports a, each shunting port a is communicated with one corresponding communication cavity 23, so that the collecting pipe 2 can arrange at least part of the heat exchange tubes 1 in the plurality of heat exchange tubes 1 in parallel, the plurality of communicating cavities 23 are arranged in the collecting pipe 2, the two connecting ports are arranged on each communicating cavity 23, so that a plurality of heat exchange pipes 1 can be respectively inserted into the plurality of connecting ports and then brazed, the automation degree of welding is improved, each communicating cavity 23 is communicated with one end of the same side of two heat exchange pipes 1, each two adjacent heat exchange pipes 1 are communicated through one communicating cavity 23 to replace a U-shaped elbow, then the refrigerant in the shunting cavity 24 is conveyed into the corresponding communicating cavity 23 through the plurality of shunting ports a on the shunting cavity 24, and then each communicating cavity 23 is communicated with the plurality of heat exchange pipes 1, so that a plurality of heat exchange flow paths which are mutually connected in parallel are formed, and the heat exchange efficiency and the efficiency of the heat exchanger 100 are also ensured due to the fact that the plurality of heat exchange pipes 1 have longer heat exchange strokes and the plurality of heat exchange flow paths which are arranged in parallel, to provide a heat exchanger 100 with high automation and high heat exchange efficiency.
Further, since the side of the plurality of heat exchange tubes 1 close to the header 2 is welded, in order to facilitate the implementation of the welding and assembling process, in this embodiment, the plurality of communicating cavities 23 may be disposed at a side close to the plurality of heat exchange tubes 1, and the plurality of shunting cavities 24 are disposed at a side of the plurality of communicating cavities 23 away from the plurality of heat exchange tubes 1, such that the plurality of heat exchange tubes 1 are aligned with the corresponding first connecting ports on the plurality of communicating cavities 23, thereby facilitating the implementation of brazing, the plurality of shunting cavities 24 are disposed at another side of the plurality of communicating cavities 23, such that the plurality of shunting cavities 24 for shunting are away from the interference of the end portions of the plurality of heat exchange tubes 1, and shunting is directly implemented through the shunting port a, so as to avoid the need to stagger the plurality of heat exchange tubes 1 when the shunting cavities 24 and the communicating cavities 23 are disposed at the same side, interference is avoided. In order to facilitate that a plurality of the branch flow openings a positioned at one side of the communication cavity 23 far away from the heat exchange tube 1 are communicated with the corresponding communication cavities 23 one by one to realize parallel connection, a plurality of adapter cavities 25 are also formed in the collecting main 2 at one side close to the plurality of heat exchange tubes 1, and a second connection port, which is correspondingly connected with one end of one heat exchange tube 1, is provided at each of the adapter cavities 25, so that one end of the heat exchange tube 1 can be communicated with one side of the adapter cavity 25, while the other side of the switching chamber 25 is communicated with the corresponding branch chamber 24 through one branch port a, so that the refrigerant in the branch chamber 24 can flow into the corresponding adapter chamber 25 through each branch port a, then, the flow division is realized through a plurality of the adapter cavities 25, so that a plurality of the heat exchange tubes 1 communicated with the corresponding adapter cavities 25 are arranged in parallel.
Further, the inflow and outflow of the refrigerant can be realized by the heat exchange tubes 1 themselves, one end of one of the heat exchange tubes 1 can be selected as an inlet of the refrigerant, one end of the other of the heat exchange tubes 1 is selected as an outlet of the refrigerant, or the refrigerant inlet 21 is arranged on the collecting pipe 2, and the refrigerant outlet 22 is arranged on the heat exchange tube 1, so as to facilitate installation and processing, please refer to fig. 4, in this embodiment, the collecting pipe 2 is further provided with the refrigerant inlet 21 and the refrigerant outlet 22, because in the processing process of the heat exchange tubes 1, in order to realize unification and standardization, the lengths of the plurality of heat exchange tubes 1 are consistent, so that the ends of all the heat exchange tubes 1 can be all integrally communicated and arranged on the collecting pipe 2, and then the functions of communication and flow path distribution are realized through the collecting pipe 2, so that the processing is also more convenient, in order to achieve the splitting and merging, the plurality of splitting chambers 24 include a first splitting chamber 241 and a second splitting chamber 242, wherein the first splitting chamber 241 is communicated with the refrigerant inlet 21, and the second splitting chamber 242 is communicated with the refrigerant outlet 22, so that the refrigerant flowing in from the refrigerant inlet 21 is split by the first splitting chamber 241 through the splitting ports a of the first splitting chamber 241, and the refrigerant of the plurality of branches split from the first splitting chamber 241 can be converged in the second splitting chamber 242 by the second splitting chamber 242 through the splitting ports a of the second splitting chamber 242, and then is delivered through the refrigerant outlet 22 communicated with the second splitting chamber 242.
Further, in this embodiment, the second branch chamber 242 is further provided with a junction b, the junction b is communicated with one of the transfer chambers 25, so that the refrigerant converged in the second branch chamber 242 can be communicated with one of the transfer chambers 25 through the junction b again, after the transfer chamber 25 is communicated with the other heat exchange tube 1, the refrigerant on the front branch is all concentrated in the heat exchange tube 1 to flow, so that the refrigerant in the heat exchange tube 1 has a faster flow rate, the heat exchange effect is better under the cooling condition, and the defrosting effect is better under the heating condition. In order to enable the refrigerant after the backflow in the heat exchange tube 1 to flow out, a converging cavity 26 is further arranged on the collecting pipe 2, the refrigerant outlet 22 is arranged on the converging cavity 26, the converging cavity 26 is communicated with the other switching cavity 25, the switching cavity 25 communicated with the converging opening b and the switching cavity 25 communicated with the converging cavity 26 are communicated through at least one heat exchange tube 1 and one communication cavity 23, and in order to enable the heat exchange stroke of the refrigerant to be longer, the heat exchange tube 1 and the communication cavities 23 can be connected in series between the converging opening b and the converging cavity 26, so that the heat exchange flow path after the converging is prolonged.
In a specific implementation, referring to fig. 3 and fig. 4, a refrigerant under a refrigeration condition flows into the branch chamber 24 through G2, and is divided by the two branch ports H1 and H2, and the refrigerant is formed from H1: h1 → T4 → T3 → T2 → T1 → T11 → T12 → T13 → T14 → H4 → a branch of H3, the refrigerant is formed from H2: h2 → T8 → T7 → T6 → T5 → T15 → T16 → T17 → T18 → H5 → another branch of H3, finally via the junction: h3 → T10 → T9 → T19 → T20 → H6 → G1 forms a complete heat exchange flow path.
The refrigerant flows into the merging cavity 26 through G1 according to the flow direction of the refrigerant under the heating working condition, and the merging path: g1 → H6 → T20 → T19 → T9 → T10 → H3. The refrigerant is divided by the two branch ports H4 and H5, and the refrigerant is formed from H4: h4 → T14 → T13 → T12 → T11 → T1 → T2 → T3 → T4 → H1 → a branch of G2. Refrigerant is formed from H3: h3 → H5 → T18 → T17 → T16 → T15 → T5 → T6 → T7 → T8 → H2 → another branch of G2.
Of course, it can be understood that if the number of the heat exchange tubes is larger, the numbers of the communicating cavities corresponding to T2 and T3, and T12 and T13 can be correspondingly increased.
Further, because the refrigerant flows in the opposite direction under the heating condition and the cooling condition, that is, the refrigerant inlet 21 under the cooling condition becomes the refrigerant outlet 22 under the heating condition, and the refrigerant outlet 22 under the cooling condition becomes the refrigerant inlet 21 under the heating condition, when the refrigerant flows in the opposite direction, the refrigerant is distributed to the plurality of branch ports a on the second branch chamber 242, referring to fig. 4, when the distance span between the plurality of branch ports a is too large, the refrigerant flows out through one of the branch ports a at the lower position, at intervals, when the refrigerant is filled to the branch ports a at the higher position, the refrigerant is distributed to the other branch ports a, at this time, the time difference between the refrigerant entering the branch lines on the plurality of parallel branch lines is longer, so that the refrigerant heat exchange effect on each branch line is not uniform, and in order to make the refrigerant in the second branch chamber 242 be distributed more uniformly, referring to fig. 5 to 9, in another embodiment, a plurality of the diversion ports a on the second diversion chamber 242 may be disposed adjacent to each other, thus, the plurality of branch ports a are arranged adjacently, uneven distribution of the refrigerant on each branch is avoided, however, when a plurality of the branch flow openings a are adjacently disposed, it is difficult to arrange and communicate a plurality of the heat exchange tubes 1 on the branches through the communication chamber 23 and the adapter chamber 25 due to the arrangement position restriction of the heat exchange tubes 1 on the branches, see fig. 8 and 9, in this embodiment, a plurality of buffer cavities 27 are further formed on the header 2, the plurality of buffer cavities 27 are disposed between the plurality of communication cavities 23 and the second branch cavity 242, one side of each buffer cavity 27 is communicated with one of the adapter cavities 25, and the other side is communicated with the second branch cavity 242 through one of the branch ports a. In this way, one side of the buffer cavity 27 is communicated with each of the branch ports a of the second branch cavity 242, and the buffer cavity 27 is communicated with the corresponding proper adapting cavity 25, so that the branched refrigerant can be distributed through the adapting cavity 25 at a proper position.
Further, referring to fig. 9, in the present embodiment, a first partition portion 31 is further formed in the second dividing cavity 242 to partition the second dividing cavity 242 into two chambers 2421, the merging port b is disposed in one of the two chambers 2421, the plurality of dividing ports a is disposed in the other of the two chambers 2421, and a flow guide port c communicating the two chambers 2421 is disposed on the first partition portion 31 towards the plurality of dividing ports a, that is, when the refrigerant flows out from the merging port b, the chamber 2421 where the merging port b is located is filled first, and after the chamber 2421 is filled, the refrigerant flows out from the flow guide port c, so that the refrigerant is delivered to the plurality of dividing ports a at a high rate, so that the refrigerant can be uniformly divided quickly.
Further, referring to fig. 9, in the present embodiment, a second partition 32 is further disposed in the chamber 2421 where the plurality of branch flow ports a are located, two side edges of the second partition 32 are respectively connected with two side walls of the chamber 2421 which are oppositely arranged, both ends of the second partition 32 are formed with gaps with the inner wall of the chamber 2421, thus, a circulation flow path is formed between the circumferential side of the second partition 32 and the inner wall of the chamber 2421, and when the refrigerant is injected and delivered to the chamber 2421, a flow path that circulates in a flow manner around the circumferential direction of the second partition portion 32 is formed in the chamber 2421, the plurality of branch flow ports a are provided on the same side of the second partition portion 32, by arranging the circulating flow path, the refrigerant can be more quickly and uniformly distributed to the plurality of branch flow ports a.
In a specific implementation, referring to fig. 8 to 10, the refrigerant flows into the branch chamber 24 through G2, and is divided by the two branch ports S1 and S2, and the refrigerant is formed from S1: s1 → T4 → T3 → T2 → T1 → T11 → T12 → T13 → T14 → S4 → H1 → H3, the refrigerant is formed from S2: s2 → T8 → T7 → T6 → T5 → T15 → T16 → T17 → T18 → S5 → H2 → another branch of H3, finally via a junction: h3 → S3 → T10 → T9 → T19 → T20 → S6 → H4 → G1 forms a complete heat exchange flow path.
The refrigerant flows into the merging cavity 26 through G1 according to the flow direction of the refrigerant under the heating working condition, and the merging path: g1 → H4 → S6 → T20 → T19 → T9 → T10 → S3 → H3. The refrigerant is divided by the two branch ports H1 and H2, and the refrigerant is formed from H1: h1 → S4 → T14 → T13 → T12 → T11 → T1 → T2 → T3 → T4 → S1 → G2. Refrigerant is formed from H2: h2 → S5 → T18 → T17 → T16 → T15 → T5 → T6 → T7 → T8 → S2 → another branch of G2.
Because the collecting pipe 2 can communicate with two ends of the plurality of heat exchange tubes 1, when the heat exchange tubes 1 are arranged in a U shape, a loop in which one collecting pipe 2 is arranged to realize series-parallel connection can be adopted to replace the existing fin U-shaped heat exchange tube 1, so similarly, when the heat exchange tubes 1 are straight tubes, the collecting pipes 2 are arranged at two ends of the plurality of heat exchange tubes 1, so as to simplify the bending of each heat exchange tube 1 into a U shape, please refer to fig. 10, in another embodiment, two collecting pipes 2 are arranged, and the two collecting pipes 2 are respectively arranged at two ends of the plurality of heat exchange tubes 1; the plurality of heat exchange tubes 1 comprise a plurality of heat exchange tube sets 10, each heat exchange tube set 10 comprises at least two heat exchange tubes 1, each communication cavity 23 is provided with at least four first connecting ports correspondingly connected with two ends of the heat exchange tube set 10, so that each of said heat exchange tube banks 10 can communicate with two different said communication chambers 23 of two of said headers 2, in this way, the flow direction of each heat exchange tube 1 of each heat exchange tube group 10 is arranged in a leading manner, the flow direction of the refrigerant in each two adjacent heat exchange tube groups 10 is arranged in an opposite manner, a plurality of heat exchange tubes 1 of each heat exchange tube group 10 are arranged in parallel, and in order to realize flow division, the flow dividing cavities 24 are formed in the collecting pipe 2, at least two flow dividing ports a are formed in each flow dividing cavity 24, and the two flow dividing ports a are communicated with the same corresponding communicating cavity 23. The refrigerant is divided into the same communication cavity 23 through the two branch ports a, then one heat exchange tube group 10 communicated with the communication cavity 23 is communicated with one communication cavity 23 on the other collecting pipe 2, so that parallel branch paths are realized, each branch cavity 24 can be communicated with the corresponding refrigerant inlet 21 or refrigerant outlet 22 through the heat exchange tube, and the refrigerant inlet 21 or refrigerant outlet 22 can also be directly arranged on the branch cavity 24.
Further, in this embodiment, two collecting pipes 2 are further provided with a refrigerant inlet 21 and a refrigerant outlet 22, two collecting pipes 2 are further formed with a conduction cavity 28, the conduction cavity 28 is provided with two third connectors correspondingly connected with two ends of the heat exchange tubes 1, so as to connect the two heat exchange tubes 1 in series and in communication, so that the conduction cavity 28 and the refrigerant inlet 21 can be lengthened, and the conduction cavity 28 can be further provided to communicate the two heat exchange tubes 1.
Further, transition cavities 29 are formed in the two collecting pipes 2, a communication port corresponding to one end of the heat exchange pipe 1 and connected with one end of the heat exchange pipe 1 is formed in each transition cavity 29, and a refrigerant inlet 21 is formed in each transition cavity 29, so that the refrigerant inlet 21 is formed in each collecting pipe 2, and machining production and later-stage assembly are more convenient.
The invention further provides a household appliance, which includes the heat exchanger 100, and the specific structure of the heat exchanger 100 refers to the above embodiments, and since the household appliance adopts all technical solutions of all the above embodiments, the household appliance at least has all the beneficial effects brought by all the technical solutions of all the above embodiments, and details are not repeated herein.
Specifically, the household appliance includes an air conditioner, and the heat exchanger 100 may be a condenser or an evaporator of the air conditioner to implement condensation or evaporation heat exchange of an indoor unit or an outdoor unit.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (12)
1. The utility model provides a heat exchanger, its characterized in that includes a plurality of heat exchange tubes that set up side by side, a plurality of heat exchange tubes that set up side by side pass through the intercommunication structural connection, so that at least part in a plurality of heat exchange tubes the heat exchange tube is parallelly connected and sets up, the intercommunication structure includes an at least pressure manifold, the pressure manifold sets up the one end of a plurality of heat exchange tubes, be formed with a plurality of intercommunication chambeies and a plurality of reposition of redundant personnel chamber in the pressure manifold, each be provided with two at least correspondences and two on the intercommunication chamber the first interface that the both ends of heat exchange tube are connected, each be provided with a plurality of diffluence spouts, each reposition of redundant personnel mouth with one that corresponds intercommunication chamber intercommunication sets up, so that the pressure manifold can be with a plurality of in the heat exchange tube at least part the heat exchange tube sets up to parallelly connected the setting.
2. The heat exchanger as claimed in claim 1, wherein the plurality of divided flow chambers are located on a side of the plurality of communicating chambers facing away from the plurality of heat exchange tubes;
a plurality of switching cavities are formed in one side, close to the plurality of heat exchange tubes, of the collecting tube, a second connecting port correspondingly connected with one end of one heat exchange tube is arranged on each switching cavity, and each switching cavity is communicated with the corresponding shunting cavity through one shunting port.
3. The heat exchanger of claim 2, wherein the header further comprises a refrigerant inlet and a refrigerant outlet;
the plurality of flow dividing cavities comprise a first flow dividing cavity and a second flow dividing cavity, the first flow dividing cavity is communicated with the refrigerant inlet, and the second flow dividing cavity is communicated with the refrigerant outlet.
4. The heat exchanger of claim 3, wherein said second manifold chamber is further provided with a junction, said junction communicating with a said transfer chamber;
the collecting pipe is also provided with a converging cavity, the converging cavity is provided with the refrigerant outlet, the converging cavity is communicated with the other switching cavity, and the switching cavity communicated with the converging port and the switching cavity communicated with the converging cavity are communicated with the communicating cavity through at least one heat exchange pipe.
5. The heat exchanger of claim 4, wherein a plurality of said flow-splitting ports on said second flow-splitting chamber are adjacently disposed;
the collecting pipe is also provided with a plurality of buffer cavities, the buffer cavities are arranged between the communication cavities and the second branch cavity, one side of each buffer cavity is communicated with one of the switching cavities, and the other side of each buffer cavity is communicated with the second branch cavity through one of the branch ports.
6. The heat exchanger of claim 5, wherein a first partition is further formed in the second flow dividing chamber to partition the second flow dividing chamber into two chambers, the junction port is provided in one of the two chambers, and the plurality of flow dividing ports are provided in the other of the two chambers;
the first partition part is provided with two diversion ports communicated with the chambers, and the diversion ports face the diversion ports.
7. The heat exchanger as claimed in claim 6, wherein a second partition part is further provided in the chamber in which the plurality of branch ports are provided, both side edges of the second partition part are respectively connected to both side walls of the chamber which are oppositely provided, both ends of the second partition part are respectively formed with a gap from an inner wall of the chamber to form a circulation passage between a peripheral side of the second partition part and the inner wall of the chamber, and the plurality of branch ports are provided on the same side of the second partition part.
8. The heat exchanger of claim 1, wherein there are two of said headers, two of said headers being disposed at opposite ends of said plurality of heat exchange tubes;
the plurality of heat exchange tubes comprise a plurality of heat exchange tube sets, and each heat exchange tube set comprises at least two heat exchange tubes;
each communication cavity is provided with at least four first connecting ports correspondingly connected with two ends of the heat exchange tube group, and each heat exchange tube group is communicated with two different communication cavities on the two collecting pipes;
at least two branch flow ports are arranged on each branch flow cavity, and the two branch flow ports are communicated with the same corresponding communication cavity, so that the plurality of heat exchange tubes of each heat exchange tube set are arranged in parallel.
9. The heat exchanger of claim 8, wherein the two headers are further provided with a refrigerant inlet and a refrigerant outlet;
the two collecting pipes are also provided with a conducting cavity, and the conducting cavity is provided with two third connectors which correspond to the two ends of the two heat exchange pipes and are connected with the two ends of the two heat exchange pipes so as to connect the two heat exchange pipes in series.
10. The heat exchanger as claimed in claim 9, wherein a transition chamber is further formed in the two headers, a communication port is correspondingly formed in the transition chamber and connected with one end of one of the heat exchange tubes, and the refrigerant inlet is further formed in the transition chamber.
11. A household appliance, characterized in that it comprises a heat exchanger according to any one of claims 1 to 10.
12. The household appliance of claim 11, wherein the household appliance comprises an air conditioner.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111683195.0A CN114279237B (en) | 2021-12-31 | 2021-12-31 | Heat exchanger and household appliance |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111683195.0A CN114279237B (en) | 2021-12-31 | 2021-12-31 | Heat exchanger and household appliance |
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| CN114279237A true CN114279237A (en) | 2022-04-05 |
| CN114279237B CN114279237B (en) | 2023-09-12 |
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| CN114279237B (en) | 2023-09-12 |
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