CN211739946U - Micro-channel parallel flow heat exchanger - Google Patents
Micro-channel parallel flow heat exchanger Download PDFInfo
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- CN211739946U CN211739946U CN201922165944.5U CN201922165944U CN211739946U CN 211739946 U CN211739946 U CN 211739946U CN 201922165944 U CN201922165944 U CN 201922165944U CN 211739946 U CN211739946 U CN 211739946U
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Abstract
The utility model provides a microchannel concurrent flow heat exchanger belongs to heat exchange technical field. The microchannel parallel flow heat exchanger comprises a flat tube assembly, a collecting tube assembly and a fin assembly, wherein the collecting tube assembly comprises a first collecting tube and a second collecting tube; the flat pipe assembly comprises a plurality of flat pipe units, each flat pipe unit is sequentially arranged at intervals along the length direction of the first collecting pipe, each flat pipe unit comprises a first flat pipe part and a second flat pipe part, the first flat pipe part and the second flat pipe part are of long-strip-shaped structures, the first flat pipe part and the second flat pipe part are arranged at intervals in the direction perpendicular to the first collecting pipe, the bent ends of the first flat pipe part and the second flat pipe part are communicated together, and the direct-connected ends of the first flat pipe part and the second flat pipe part are respectively communicated with the first collecting pipe and the second collecting pipe; the fin component comprises a plurality of fin units, and one fin unit is clamped between every two adjacent first flat pipe parts and between every two adjacent second flat pipe parts. The present disclosure may reduce material costs.
Description
Technical Field
The disclosure belongs to the technical field of heat exchange, and particularly relates to a micro-channel parallel flow heat exchanger.
Background
The heat exchanger is a common heat exchange device and mainly comprises a flat pipe assembly, a collecting pipe assembly and a fin assembly, wherein the collecting pipe assembly comprises a first collecting pipe and a second collecting pipe, the first collecting pipe and the second collecting pipe are communicated through the flat pipe assembly, and the fin assembly is arranged in the flat pipe assembly to exchange heat for cooling liquid circulating in the flat pipe assembly.
In the related art, in order to improve the heat exchange effect of the heat exchanger, two sets of collecting pipe assemblies are usually arranged, flat pipes are communicated between a first collecting pipe and a second collecting pipe of each set of collecting pipe assembly, and the two sets of collecting pipe assemblies are communicated with each other. So arrange, can be so that the coolant liquid circulates between two sets of collecting pipe subassemblies, increased the time of coolant liquid through flat pipe to the heat transfer time of fin subassembly to the coolant liquid has been increased, and then improved the heat transfer effect.
However, although the heat exchanger has improved heat exchange effect, the two sets of header pipe assemblies are provided, which results in an increase in material cost.
SUMMERY OF THE UTILITY MODEL
The embodiment of the disclosure provides a microchannel parallel flow heat exchanger, which can reduce material cost under the condition of ensuring heat exchange effect. The technical scheme is as follows:
the disclosed embodiments provide a microchannel parallel flow heat exchanger comprising a flat tube assembly, a header assembly, and a fin assembly,
the collecting pipe assembly comprises a first collecting pipe and a second collecting pipe, and the first collecting pipe and the second collecting pipe are arranged in parallel at intervals;
the flat pipe assembly comprises a plurality of flat pipe units, the flat pipe units are sequentially arranged at intervals along the length direction of the first collecting pipe, each flat pipe unit comprises a first flat pipe part and a second flat pipe part, the first flat tube part and the second flat tube part are both in a strip-shaped structure, the first flat tube part and the second flat tube part both comprise a bending end and a direct connecting end, for any one flat pipe unit, the first flat pipe parts and the second flat pipe parts are arranged at intervals in a direction perpendicular to the first collecting pipe, and the middle parts of the first flat tube part and the second flat tube part are positioned on the same plane vertical to the first collecting pipe, the bent ends of the first flat tube part and the second flat tube part are communicated together, the direct-connected end of the first flat tube part is communicated with the first collecting tube, and the direct-connected end of the second flat tube part is communicated with the second collecting tube;
the fin component comprises a plurality of fin units, one fin unit is clamped between every two adjacent first flat pipe portions, and one fin unit is clamped between every two adjacent second flat pipe portions.
In an implementation manner of the present disclosure, the bending end of the first flat tube portion faces the second flat tube portion, the bending end of the second flat tube portion faces the first flat tube portion, and the bending angle of the first flat tube portion is the same as the bending angle of the second flat tube portion.
In another implementation manner of the present disclosure, the bent end of the first flat tube portion is folded to one side of the first flat tube portion, and the bent end of the first flat tube portion and the middle portion of the first flat tube portion are arranged at an interval in the length direction of the first collecting pipe.
In another implementation manner of the present disclosure, the bent end of the second flat tube portion is folded to one side of the second flat tube portion, and the bent end of the second flat tube portion and the middle portion of the second flat tube portion are arranged at an interval in the length direction of the second header.
In another implementation manner of the present disclosure, a distance between the bent end of the first flat tube portion and the middle of the first flat tube portion in the length direction of the first header is equal to a distance between the bent end of the second flat tube portion and the middle of the second flat tube portion in the length direction of the second header.
In another implementation manner of the present disclosure, the bending end of the first flat tube portion is folded to one side of the first flat tube portion, the bending end of the first flat tube portion and the middle portion of the first flat tube portion are arranged at intervals in the length direction of the first header tube, the bending end of the second flat tube portion is folded to one side of the second flat tube portion, and is perpendicular to the plane of the second header tube and bent toward the bending end of the first flat tube portion, and the bending end of the second flat tube portion and the middle portion of the second flat tube portion are arranged at intervals in the length direction of the second header tube.
In another implementation manner of the present disclosure, a distance between the bent end of the first flat tube portion and the middle of the first flat tube portion in the length direction of the first header is equal to a distance between the bent end of the second flat tube portion and the middle of the second flat tube portion in the length direction of the second header.
In yet another implementation of the present disclosure, the first flat tube portion and the second flat tube portion are a unitary structural member.
In yet another implementation of the present disclosure, an angle between a middle portion of the first flat tube portion and a middle portion of the second flat tube portion is no greater than 90 °.
In another implementation manner of the present disclosure, the fin units located between two adjacent first flat tube portions and the fin units located between two adjacent second flat tube portions are arranged at intervals.
The technical scheme provided by the embodiment of the disclosure has the following beneficial effects:
when carrying out the heat transfer through the microchannel parallel flow heat exchanger that this disclosed embodiment provided, the coolant liquid flows in by first pressure manifold, flows out through the direct connection end of first flat tube portion. In the circulation process in the first flat tube portion, the fin units clamped between the first flat tube portion and the second flat tube portion are utilized for heat exchange, so that the first heat exchange of one flat tube unit is realized. The cooling liquid flows to the end of buckling of the flat pipe portion of second by the end of buckling of first flat pipe portion, at the intercommunication in-process of the flat pipe portion of second, utilizes the fin unit of pressing from both sides between two adjacent first flat pipe portions and the fin unit of pressing from both sides between two flat pipe portions of second to carry out the heat transfer, so realized the second heat transfer of same flat pipe unit. And then, the heat flows from the direct connection end of the second flat pipe part to the second collecting pipe, and the whole heat exchange process is completed. That is to say, among the single flat tube unit that this disclosure provided, can carry out twice heat transfer to heat transfer capacity has been guaranteed. In addition, the first flat pipe part and the second flat pipe part are arranged at intervals in the direction perpendicular to the first collecting pipe, so that the micro-channel parallel flow heat exchanger provided by the disclosure is a double-row micro-channel parallel flow heat exchanger actually, and the heat exchange effect is further improved.
In addition, because the microchannel parallel flow heat exchanger provided by the disclosure realizes the backflow of the cooling liquid by utilizing the self bending of the flat pipe unit, only two collecting pipes (a first collecting pipe and a second collecting pipe) need to be arranged, thereby reducing the material cost.
Therefore, the microchannel parallel flow heat exchanger provided by the embodiment of the disclosure can reduce the material cost under the condition of ensuring the heat exchange effect.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present disclosure, and it is obvious for those skilled in the art to obtain other drawings based on the drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a microchannel parallel flow heat exchanger provided in an embodiment of the present disclosure;
fig. 2 is a schematic structural diagram of a flat tube unit provided in the embodiment of the present disclosure;
fig. 3 is a front view of a flat tube unit provided in the embodiment of the present disclosure;
fig. 4 is a bottom view of a flat tube unit provided in the embodiment of the present disclosure;
fig. 5 is a right side view of a flat tube unit provided in an embodiment of the present disclosure;
FIG. 6 is a schematic structural diagram of another microchannel parallel flow heat exchanger provided in accordance with an embodiment of the present disclosure;
fig. 7 is a front view of another flat tube unit provided in the embodiments of the present disclosure;
fig. 8 is a bottom view of another flat tube unit provided in the embodiments of the present disclosure;
fig. 9 is a right side view of another flat tube unit provided in the embodiments of the present disclosure.
The symbols in the drawings represent the following meanings:
1. a flat tube assembly; 11. flat tube units; 111. a first flat tube portion; 112. a second flat tube portion; 2. a manifold assembly; 21. a first header; 22. a second header; 3. a fin assembly; 31. a fin unit.
Detailed Description
To make the objects, technical solutions and advantages of the present disclosure more apparent, embodiments of the present disclosure will be described in detail with reference to the accompanying drawings.
The embodiment of the present disclosure provides a microchannel parallel flow heat exchanger, which is actually a double-row microchannel parallel flow heat exchanger, as shown in fig. 1, the microchannel parallel flow heat exchanger includes a flat tube assembly 1, a header assembly 2 and a fin assembly 3.
The header assembly 2 includes a first header 21 and a second header 22, and the first header 21 and the second header 22 are arranged in parallel and spaced apart from each other.
The fin assembly 3 includes a plurality of fin units 31, one fin unit 31 is interposed between each adjacent two of the first flat tube portions 111, and one fin unit 31 is interposed between each adjacent two of the second flat tube portions 112.
Note that, in fig. 1, a part of the fin unit 31 is omitted in order to more clearly show the structure of the flat tube unit 11. In practice, the fin unit 31 located between two adjacent first flat tube portions 111 may extend from the bent ends of the first flat tube portions 111 to the straight ends of the first flat tube portions 111. Accordingly, the fin unit 31 located between two adjacent second flat tube portions 112 may extend from the bent end of the second flat tube portion 112 to the straight end of the first flat tube portion 111.
When heat exchange is performed through the microchannel parallel flow heat exchanger provided by the embodiment of the present disclosure, the cooling liquid flows in from the first collecting pipe 21, and flows out through the direct connection end of the first flat pipe portion 111. In the process of circulation in the first flat tube portions 111, heat exchange is performed by the fin units 31 interposed between the first flat tube portions 111 and the second flat tube portions 112, and thus, the first heat exchange of one flat tube unit 11 is realized. The cooling liquid flows from the bent end of the first flat tube portion 111 to the bent end of the second flat tube portion 112, and in the process of communicating the second flat tube portions 112, the fin units 31 clamped between two adjacent first flat tube portions 111 and the fin units 31 clamped between two second flat tube portions 112 exchange heat, so that secondary heat exchange of the same flat tube unit 11 is realized. After that, the heat flows from the straight end of the second flat tube part 112 to the second header 22, and the whole heat exchange process is completed. That is to say, in the single flat tube unit 11 provided by the present disclosure, heat exchange can be performed twice, thereby ensuring heat exchange capability. Moreover, since the first flat tube portion 111 and the second flat tube portion 112 are arranged at intervals in the direction perpendicular to the first header 21, the microchannel parallel flow heat exchanger provided by the present disclosure is actually a double-row microchannel parallel flow heat exchanger, and the heat exchange effect is further improved.
In addition, because the microchannel parallel flow heat exchanger provided by the disclosure realizes the backflow of the cooling liquid by utilizing the self bending of the flat tube unit 11, only two collecting pipes (the first collecting pipe 21 and the second collecting pipe 22) need to be arranged, thereby reducing the material cost.
Therefore, the microchannel parallel flow heat exchanger provided by the embodiment of the disclosure can reduce the material cost under the condition of ensuring the heat exchange effect.
In the present embodiment, the fin units 31 located between two adjacent first flat tube portions 111, and the fin units 31 located between two adjacent second flat tube portions 112 are arranged at intervals from each other.
In the above implementation, it is equivalent to divide fin assembly 3 into two independent parts, one part is dedicated to heat exchange of first flat tube portion 111, and the other part is dedicated to heat exchange of second flat tube portion 112. In this way, uniform heat dissipation of the coolant in the first flat tube portion 111 and the second flat tube portion 112 can be achieved without occurrence of uneven heat dissipation.
In addition, because the fin units 31 of the two parts are arranged at intervals, the manufacturing material of the fin units 31 is saved, and the manufacturing cost of the micro-channel parallel flow heat exchanger is reduced.
In the present embodiment, the first flat tube portion 111 and the second flat tube portion 112 are an integral structure.
In the above implementation manner, the structural integrity of the flat pipe unit 11 can be ensured by the arrangement, the structural strength of the flat pipe unit 11 is improved, the production and the manufacture of the flat pipe unit 11 are facilitated, and the manufacturing cost and the manufacturing efficiency are reduced.
Exemplarily, the first flat tube portion 111 and the second flat tube portion 112 may be both aluminum structures to reduce the self weight of the flat tube structure and ensure the heat exchange effect.
Fig. 2 is a schematic structural view of a flat tube unit provided in this embodiment, and referring to fig. 2, in this embodiment, a bent end of a first flat tube portion 111 is bent toward a second flat tube portion 112, a bent end of the second flat tube portion 112 is bent toward the first flat tube portion 111, and a bending angle α of the first flat tube portion 111 is1And the bending angle alpha of the second flat tube part 1122The same is true.
In the above implementation manner, the bending end of the first flat tube portion 111 and the bending end of the second flat tube portion 112 are respectively bent toward each other, and the bending angles are the same, so that any one of the bending ends of the first flat tube portion 111 or the bending ends of the second flat tube portion 112 can be prevented from being excessively bent, and the structural strength of the flat tube unit 11 is ensured.
In addition, because the bent end of the first flat tube portion 111 or the bent end of the second flat tube portion 112 is prevented from being excessively bent, the passing performance of the cooling liquid in the bent end of the first flat tube portion 111 and the bent end of the second flat tube portion 112 can be ensured, so that the cooling liquid can smoothly flow from the first flat tube portion 111 to the second flat tube portion 112, and the flow rate of the cooling liquid can be ensured.
Fig. 3 is a front view of a flat tube unit provided in this embodiment, and in combination with fig. 3, an exemplary bending angle α of the first flat tube portion 1111And the bending angle alpha of the second flat tube part 1122May all be 90.
In the above-described embodiment, if the bending angle is greater than 90 °, the first flat tube portion 111 and the second flat tube portion 112 may be bent too much, which may affect the flow of the coolant; if the bending angle is less than 90 °, the first flat tube portion 111 and the second flat tube portion 112 may not be bent enough and may be too protruded, which may affect the installation of the microchannel parallel flow heat exchanger. And the bending angle is set to be 90 degrees, so that the circulation of the cooling liquid is ensured, and the installation of the micro-channel parallel flow heat exchanger cannot be influenced.
It should be noted that, if in order to meet other actual requirements, the bending angle may also be adjusted according to the actual requirements, which is not limited in this disclosure.
Alternatively, the angle between the middle of the first flat tube portion 111 and the middle of the second flat tube portion 112 is not more than 90 °.
In the above implementation, the included angle is limited by the production process and the installation space of the microchannel parallel flow heat exchanger. The included angle is set to be not more than 90 degrees, and the flat pipe unit 11 can be manufactured at low manufacturing cost. And moreover, the structure compactness of the micro-channel parallel flow heat exchanger can be ensured, and the too large installation space required by the micro-channel parallel flow heat exchanger cannot be caused.
Illustratively, the middle of the first flat tube portion 111 and the middle of the second flat tube portion 112 are parallel to each other, and the middle of the first flat tube portion 111 is perpendicular to the first header 21, and the middle of the second flat tube portion 112 is perpendicular to the second header 22.
Referring again to fig. 2, in the present embodiment, the bent end of the first flat tube portion 111 is folded to one side of the first flat tube portion 111, and the bent end of the first flat tube portion 111 and the middle portion of the first flat tube portion 111 are arranged at an interval in the length direction of the first header 21.
In addition, a folding line L between the bent end of the first flat tube portion 111 and the middle portion of the first flat tube portion 1111And is inclined back to the first header 21 in a direction from the outer side to the inner side of the first flat tube part 111.
In the above implementation manner, the bending between the bent end of the first flat tube portion 111 and the middle portion of the first flat tube portion 111 is achieved by the folding manner, which is relatively easy to implement. For example, according to the above-mentioned manner, a straight flat tube (which may be a standard component, and is easy to obtain and has a low cost) may be provided first, and then the above-mentioned structure may be obtained by only once folding through the tube bending machine, so the operation is simple.
Alternatively, the bent end of the second flat tube portion 112 is folded to one side of the second flat tube portion 112, and the bent end of the second flat tube portion 112 and the middle portion of the second flat tube portion 112 are arranged at intervals in the length direction of the second header 22.
Note that the folding line L between the bent end of the second flat tube portion 112 and the middle portion of the second flat tube portion 1122And is inclined back to the second header 22 in a direction from the outer side edge to the inner side edge of the second flat tube part 112.
In the above embodiment, for the same reason, the bent end of the second flat tube portion 112 and the middle portion of the second flat tube portion 112 are bent by the folding mode, and the bending is easily performed.
Note that one side of the first flat tube portion 111 and one side of the second flat tube portion 112 are the same side.
In this way, the butt joint between the bent end of the first flat tube portion 111 and the bent end of the second flat tube portion 112 can be facilitated.
Fig. 4 is a bottom view of the flat tube unit provided in this embodiment, and referring to fig. 4, exemplarily, a distance d between the bent end of the first flat tube portion 111 and the middle portion of the first flat tube portion 111 in the length direction of the first collecting pipe 211Equal to the distance d between the bent end of the second flat tube portion 112 and the middle portion of the second flat tube portion 112 in the length direction of the second header 222。
In the above implementation, by the above definition, it is ensured that the bent ends of the first flat tube portions 111 and the bent ends of the second flat tube portions 112 are bent to substantially the same degree.
Fig. 5 is a right side view of the flat tube unit provided in this embodiment, and in combination with fig. 5, the distance d is exemplarily shown1And a distance d2Can be adjusted according to the height H of the fin unit 31 actually selected by the product, and the size range can be 0 < (d)1＝d2) H is less than or equal to H. So arranged, the gap d can be avoided1And a distance d2Too large, which results in interference and collision between two adjacent flat tube units 11. For example, when d1＝d2When H, then d is the distance1And a distance d2At this time, the bent end of the first flat tube portion 111, the bent end of the second flat tube portion 112, and the fin unit 31 are all in contact with the adjacent one of the flat tube units 11, and interference collision is not generated.
Fig. 6 is a schematic structural diagram of another microchannel parallel flow heat exchanger provided in the present disclosure, and in combination with fig. 6, the structure of the microchannel parallel flow heat exchanger is substantially the same as that of the microchannel parallel flow heat exchanger shown in fig. 1, except for the bending manner of the flat tube unit 11.
In this embodiment, the bent end of the first flat tube portion 111 is folded to one side of the first flat tube portion 111, the bent end of the first flat tube portion 111 and the middle portion of the first flat tube portion 111 are arranged at intervals in the length direction of the first header 21, the bent end of the second flat tube portion 112 is folded to one side of the second flat tube portion 112 and is bent towards the bent end of the first flat tube portion 111 on a plane perpendicular to the second header 22, and the bent end of the second flat tube portion 112 and the middle portion of the second flat tube portion 112 are arranged at intervals in the length direction of the second header 22.
Note that one side of the first flat tube portion 111 and one side of the second flat tube portion 112 are the same side.
In this way, the butt joint between the bent end of the first flat tube portion 111 and the bent end of the second flat tube portion 112 can be facilitated.
In the above implementation, the folding line L between the bent end of the first flat tube portion 111 and the middle of the first flat tube portion 1113And is inclined back to the first header 21 in a direction from the outer side to the inner side of the first flat tube part 111. A folding line L between the bent end of the second flat tube portion 112 and the middle of the second flat tube portion 1124And is arranged perpendicular to the second header 22 in a direction from the outer side edge toward the inner side edge of the second flat tube portion 112.
Fig. 7 is a front view of another flat tube unit provided in this embodiment, and in conjunction with fig. 7, exemplarily, an included angle between a middle portion of the first flat tube portion 111 and a middle portion of the second flat tube portion 112 is not greater than 90 °.
In the above implementation, the included angle is limited by the production process and the installation space of the microchannel parallel flow heat exchanger. The included angle is set to be not more than 90 degrees, and the flat pipe unit 11 can be manufactured at low manufacturing cost. And moreover, the structure compactness of the micro-channel parallel flow heat exchanger can be ensured, and the too large installation space required by the micro-channel parallel flow heat exchanger cannot be caused.
Illustratively, the middle of the first flat tube portion 111 and the middle of the second flat tube portion 112 are parallel to each other, and the middle of the first flat tube portion 111 is perpendicular to the first header 21, and the middle of the second flat tube portion 112 is perpendicular to the second header 22.
Fig. 8 is a bottom view of another flat tube unit provided in this embodiment, and referring to fig. 8, exemplarily, a distance d between the bent end of the first flat tube portion 111 and the middle portion of the first flat tube portion 111 in the length direction of the first collecting pipe 213Equal to the bent end of the second flat tube portion 112 and the second flat tube portionThe distance d between the middle portions of the tube portions 112 in the longitudinal direction of the second header 224。
In the above implementation, by the above definition, it can be ensured that the bending degrees of the bending ends of the first flat tubes and the bending ends of the second flat tubes 112 are substantially the same.
Fig. 9 is a right side view of another flat tube unit provided in this embodiment, and in combination with fig. 9, for example, the distance d is set forth above3And a distance d4Can be adjusted according to the height H of the fin unit 31 actually selected by the product, and the size range can be 0 < (d)3＝d4) H is less than or equal to H. So arranged, the gap d can be avoided3And a distance d4Too large, which results in interference and collision between two adjacent flat tube units 11. For example, when d3＝d4When H, then d is the distance3And a distance d4At this time, the bent end of the first flat tube portion 111, the bent end of the second flat tube portion 112, and the fin unit 31 are all in contact with the adjacent one of the flat tube units 11, and interference collision is not generated.
The above description is intended to be exemplary only and not to limit the present disclosure, and any modification, equivalent replacement, or improvement made without departing from the spirit and scope of the present disclosure is to be considered as the same as the present disclosure.
Claims (10)
1. A microchannel parallel flow heat exchanger comprising a flat tube assembly (1), a header assembly (2) and a fin assembly (3),
the collecting pipe assembly (2) comprises a first collecting pipe (21) and a second collecting pipe (22), and the first collecting pipe (21) and the second collecting pipe (22) are arranged in parallel at intervals;
the flat pipe assembly (1) comprises a plurality of flat pipe units (11), each flat pipe unit (11) is arranged along the length direction of the first collecting pipe (21) at intervals in sequence, each flat pipe unit (11) comprises a first flat pipe part (111) and a second flat pipe part (112), the first flat pipe part (111) and the second flat pipe part (112) are of a long strip-shaped structure, the first flat pipe part (111) and the second flat pipe part (112) comprise bent ends and direct connected ends, and for any flat pipe unit (11), the first flat pipe part (111) and the second flat pipe part (112) are arranged at intervals in the direction perpendicular to the first collecting pipe (21), the middle parts of the first flat pipe part (111) and the second flat pipe part (112) are located on the plane perpendicular to the first collecting pipe (21), and the bent ends of the first flat pipe part (111) and the second flat pipe part (112) are communicated together, the direct connection end of the first flat pipe part (111) is communicated with the first collecting pipe (21), and the direct connection end of the second flat pipe part (112) is communicated with the second collecting pipe (22);
the fin assembly (3) comprises a plurality of fin units (31), one fin unit (31) is clamped between every two adjacent first flat tube parts (111), and one fin unit (31) is clamped between every two adjacent second flat tube parts (112).
2. The microchannel parallel flow heat exchanger of claim 1, wherein the bent end of the first flat tube portion (111) is bent toward the second flat tube portion (112), the bent end of the second flat tube portion (112) is bent toward the first flat tube portion (111), and the bending angle of the first flat tube portion (111) and the bending angle of the second flat tube portion (112) are the same.
3. The microchannel parallel flow heat exchanger of claim 2, wherein the bent end of the first flat tube part (111) is folded to one side of the first flat tube part (111), and the bent end of the first flat tube part (111) and the middle part of the first flat tube part (111) are arranged at intervals in the length direction of the first header (21).
4. The microchannel parallel flow heat exchanger of claim 3, wherein the bent end of the second flat tube portion (112) is folded to one side of the second flat tube portion (112), and the bent end of the second flat tube portion (112) and the middle of the second flat tube portion (112) are arranged at a distance in the length direction of the second header (22).
5. The microchannel parallel flow heat exchanger of claim 4, wherein a distance between the bent end of the first flat tube portion (111) and a middle portion of the first flat tube portion (111) in a length direction of the first header (21) is equal to a distance between the bent end of the second flat tube portion (112) and a middle portion of the second flat tube portion (112) in a length direction of the second header (22).
6. The microchannel parallel flow heat exchanger according to claim 1, wherein the bent end of the first flat tube part (111) is folded to one side of the first flat tube part (111), the bent end of the first flat tube part (111) and the middle part of the first flat tube part (111) are arranged at intervals in a length direction of the first header (21), the bent end of the second flat tube part (112) is folded to one side of the second flat tube part (112) and is bent toward the bent end of the first flat tube part (111) on a plane perpendicular to the second header (22), and the bent end of the second flat tube part (112) and the middle part of the second flat tube part (112) are arranged at intervals in the length direction of the second header (22).
7. The microchannel parallel flow heat exchanger of claim 6, wherein a distance between the bent end of the first flat tube portion (111) and a middle portion of the first flat tube portion (111) in a length direction of the first header (21) is equal to a distance between the bent end of the second flat tube portion (112) and a middle portion of the second flat tube portion (112) in a length direction of the second header (22).
8. The microchannel parallel flow heat exchanger of any of claims 1-7, wherein the first flat tube portion (111) and the second flat tube portion (112) are a unitary structural member.
9. The microchannel parallel flow heat exchanger of any of claims 1-7, wherein an angle between a middle portion of the first flat tube portion (111) and a middle portion of the second flat tube portion (112) is no greater than 90 °.
10. The microchannel parallel flow heat exchanger according to any one of claims 1 to 7, wherein the fin unit (31) between adjacent two of the first flat tube portions (111) and the fin unit (31) between adjacent two of the second flat tube portions (112) are arranged at a distance from each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922165944.5U CN211739946U (en) | 2019-12-05 | 2019-12-05 | Micro-channel parallel flow heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922165944.5U CN211739946U (en) | 2019-12-05 | 2019-12-05 | Micro-channel parallel flow heat exchanger |
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| Publication Number | Publication Date |
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| CN211739946U true CN211739946U (en) | 2020-10-23 |
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| CN201922165944.5U Active CN211739946U (en) | 2019-12-05 | 2019-12-05 | Micro-channel parallel flow heat exchanger |
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