Manifold structure and parallel flow evaporator

By using baffles and guide plates to separate the manifold in the parallel flow evaporator, forming a multi-stage flow path and regulating the flow rate, the near-end enrichment effect of the cold medium in the manifold is solved, and uniform distribution of the cold medium and efficient heat exchange are achieved.

CN224552188UActive Publication Date: 2026-07-24HUNAN DONGLI INTELLIGENT TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HUNAN DONGLI INTELLIGENT TECH CO LTD
Filing Date
2025-07-17
Publication Date
2026-07-24

AI Technical Summary

Technical Problem

Existing parallel flow evaporators suffer from a near-end enrichment effect of the refrigerant in the manifold, leading to uneven heat exchange, especially with excessive refrigerant at the inlet and insufficient refrigerant at the outlet, resulting in a large temperature difference.

Method used

The first and second manifolds are symmetrically arranged. The manifolds are divided into multiple flow paths by baffles and guide plates. The flow rate is adjusted by the baffles to form multiple flow paths, which extends the heat exchange path of the cold medium and improves the heat exchange uniformity.

Benefits of technology

It achieves uniform distribution of the cooling medium in the evaporator, reduces the temperature difference on the heat dissipation surface, controls the temperature difference within ±1.5℃, and improves heat exchange efficiency and uniformity.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a kind of manifold structure and parallel flow evaporator, the manifold structure includes symmetrically arranged first manifold and second manifold, the first manifold includes mutually adhering import pipe cavity and export pipe cavity, and import pipe cavity and the both ends of the export pipe cavity are provided with import and export plug cap and cover respectively;The middle section inside of import pipe cavity and the export pipe cavity is all provided with baffle, and the internal space of import pipe cavity is divided into first sub-chamber and second sub-chamber by the baffle, and the internal space of the export pipe cavity is divided into third sub-chamber and fourth sub-chamber by the baffle;First sub-chamber and the third sub-chamber are all provided with first partition in it;Overcurrent hole is provided on the adjacent side wall of second sub-chamber and fourth sub-chamber.The utility model can realize the flow regulation in the chamber of manifold, avoid local flow rate too high or too low, improve heat exchange uniformity.
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Description

Technical Field

[0001] This utility model relates to the field of heat exchange device technology, and in particular to a manifold structure and a parallel flow evaporator. Background Technology

[0002] Currently, the space for installing air conditioners in cars is limited, and the size of air conditioners has strict requirements. Therefore, automotive air conditioner evaporators need to be highly efficient, small in size, and lightweight. Consequently, the thickness of the evaporator core is becoming increasingly thinner. When the thickness of the evaporator core is reduced to a certain extent, the original stacked structure can no longer meet the performance requirements of air conditioners. Therefore, parallel flow evaporators have emerged.

[0003] Existing parallel flow evaporators typically use a 4-flow structure evaporator manifold. After the refrigerant enters the manifold, it tends to exhibit a "near-end enrichment effect," meaning that most of the refrigerant is concentrated in the flow area at the inlet end, while the flow rate of the end heat exchange tube assembly is insufficient, resulting in a measured temperature difference of 5-8℃.

[0004] Therefore, improving the heat exchange uniformity of parallel flow evaporators is a current technical problem to be solved. Utility Model Content

[0005] The main objective of this invention is to provide a manifold structure and a parallel flow evaporator, which aims to solve the aforementioned technical problems in the background art.

[0006] To achieve the above objectives, this utility model provides a manifold structure, including a first manifold and a second manifold symmetrically arranged. The first manifold includes an inlet cavity and an outlet cavity that fit together. Inlet and outlet caps and covers are respectively provided at both ends of the inlet cavity and the outlet cavity. A baffle is provided inside the middle section of both the inlet cavity and the outlet cavity. The baffle divides the internal space of the inlet cavity into a first sub-chamber and a second sub-chamber that are not interconnected, and divides the internal space of the outlet cavity into a third sub-chamber and a fourth sub-chamber that are not interconnected. A first partition is provided inside both the first and third sub-chambers. Flow holes are provided on the adjacent sidewalls of the second and fourth sub-chambers.

[0007] The second manifold includes a first cavity and a second cavity that fit together. Both ends of the first cavity and the second cavity are provided with the caps. A guide plate is provided inside the middle section of the first cavity and the second cavity. The guide plate divides the internal space of the first cavity into a fifth sub-chamber and a sixth sub-chamber that are connected to each other, and divides the internal space of the second cavity into a seventh sub-chamber and an eighth sub-chamber that are connected to each other. A second partition is provided in both the sixth sub-chamber and the seventh sub-chamber.

[0008] Preferably, the guide plate is provided with guide holes.

[0009] Preferably, both the first partition and the second partition have through holes in their middle portions.

[0010] Preferably, the inlet / outlet plug includes a mounting base, an inlet connector, and an outlet connector; the mounting base has a first recess adapted to the inlet cavity and a second recess adapted to the outlet cavity on the side facing the cavity; the first recess has a first positioning hole at its center, and the second recess has a second positioning hole at its center; the inlet connector is interference-fitted and fixed in the first positioning hole, and the outlet connector is interference-fitted and fixed in the second positioning hole; the size of the inlet connector is smaller than the size of the outlet connector.

[0011] Preferably, the corners of the mounting substrate are provided with surrounding portions.

[0012] Preferably, the inner wall of the first manifold is provided with a baffle mounting groove and a first partition mounting groove, and the outer wall of the first manifold is provided with a first opening corresponding to the position of the baffle mounting groove and a second opening corresponding to the position of the first partition mounting groove; one end of the baffle is fixed in the baffle mounting groove, and the other end passes through the first opening; one end of the first partition is fixedly connected to the first partition mounting groove, and the other end passes through the second opening.

[0013] Preferably, the first manifold is provided with first insertion holes at equal intervals along its length, and the second manifold is provided with second insertion holes at equal intervals along its length, corresponding to the positions of the first insertion holes.

[0014] In addition, this utility model also provides a parallel flow evaporator, including a heat exchange core and a manifold structure as described above; the heat exchange core includes a heat exchange tube, heat dissipation fins and a side plate; the heat exchange tube is disposed between the first manifold and the second manifold, the heat dissipation fins are disposed on the upper and lower surfaces of the heat exchange tube, and the side plate is disposed outside the outermost heat dissipation fins.

[0015] Preferably, at least one flow divider is provided inside the heat exchange tube, which divides the heat exchange tube into multiple parallel flow paths.

[0016] The aforementioned manifold structure and parallel flow evaporator divide the manifold into upper and lower sub-chambers through baffles and guide plates, forming a multi-stage flow path, extending the heat exchange path of the cold medium, and improving heat exchange efficiency. At the same time, by setting baffles, the flow rate inside the manifold chamber can be adjusted, avoiding the problem of insufficient heat exchange due to excessively high local flow velocity or flow stagnation due to excessively low flow velocity, thus improving heat exchange uniformity. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the manifold structure in one embodiment of the present invention;

[0019] Figure 2 This is an exploded view of the manifold structure in one embodiment of the present invention;

[0020] Figure 3 for Figure 1 Schematic diagram of the first manifold Figure 1 ;

[0021] Figure 4 for Figure 1 Schematic diagram of the first manifold Figure 2 ;

[0022] Figure 5 for Figure 1 A schematic diagram of the exploded structure of the first manifold in the middle;

[0023] Figure 6 for Figure 1 Schematic diagram of the internal structure of the first manifold;

[0024] Figure 7 for Figure 1 Schematic diagram of the second manifold Figure 1 ;

[0025] Figure 8 for Figure 1 Schematic diagram of the second manifold Figure 2 ;

[0026] Figure 9 for Figure 1 A schematic diagram of the exploded structure of the second manifold;

[0027] Figure 10 for Figure 1 Schematic diagram of the internal structure of the second manifold;

[0028] Figure 11 This is a schematic diagram of the inlet and outlet plugs of the manifold structure in one embodiment of the present invention;

[0029] Figure 12 This is a schematic diagram of the structure of a parallel flow evaporator in another embodiment of the present invention;

[0030] Figure 13 for Figure 12 A magnified view of a portion of point A in the middle;

[0031] Figure 14 for Figure 12 Schematic diagram of the heat exchange tube structure;

[0032] Figure 15 for Figure 14 A magnified view of a portion of point I in the middle.

[0033] The serial numbers in the diagram are explained as follows:

[0034] 110. First manifold; 1. Inlet cavity; 101. First sub-chamber; 102. Second sub-chamber; 2. Outlet cavity; 201. Third sub-chamber; 202. Fourth sub-chamber; 3. Inlet and outlet plugs; 301. Mounting base plate; 302. Inlet connector; 303. Outlet connector; 304. First recess; 305. Second recess; 306. Enclosing part; 4. Cover; 5. Baffle; 6. First partition; 601. Through hole; 7. Flow hole; 12. First insertion hole.

[0035] 120. Second manifold; 13. First cavity; 1301. Fifth sub-chamber; 1302. Sixth sub-chamber; 14. Second cavity; 1401. Seventh sub-chamber; 1402. Eighth sub-chamber; 15. Guide plate; 1501. Guide hole; 16. Second partition; 1601. Through hole; 17. Second insertion hole;

[0036] 130. Heat exchange core; 131. Heat exchange tube; 1311. Diversion baffle; 132. Heat dissipation fins; 133. Side plate. Detailed Implementation

[0037] To better understand the above technical solutions, exemplary embodiments of this disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of this disclosure are shown in the drawings, it should be understood that this disclosure can be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of this disclosure to those skilled in the art.

[0038] It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.

[0039] It should be understood that in the embodiments of this utility model, the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc., indicate the orientation or positional relationship based on the coordinate system shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0040] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0041] In this utility model, unless otherwise explicitly specified and limited, "above," "on top of," and "over" the first feature and the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "under," and "below" the first feature and the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0042] One embodiment of this utility model provides a manifold structure, which is used in an automotive air conditioning evaporator. (Refer to...) Figures 1 to 10The manifold structure includes a first manifold 110 and a second manifold 120 arranged symmetrically. The first manifold 110 includes an inlet cavity 1 and an outlet cavity 2 that fit together. Inlet and outlet caps 3 and seals 4 are respectively provided at both ends of the inlet cavity 1 and the outlet cavity 2. Baffles 5 are provided inside the middle sections of both the inlet cavity 1 and the outlet cavity 2. The baffles 5 divide the internal space of the inlet cavity 1 into a first sub-chamber 101 and a second sub-chamber 102 that are not interconnected, and divide the internal space of the outlet cavity 2 into a third sub-chamber 201 and a fourth sub-chamber 202 that are not interconnected. A first partition 6 is provided inside both the first sub-chamber 101 and the third sub-chamber 201. The second sub-chamber 101... A flow passage 7 is provided on the adjacent sidewalls of chamber 102 and the fourth sub-chamber 202; the second manifold 120 includes a first cavity 13 and a second cavity 14 that fit together, and both ends of the first cavity 13 and the second cavity 14 are provided with the cap 4; a guide plate 15 is provided inside the middle section of the first cavity 13 and the second cavity 14, and the guide plate 15 divides the internal space of the first cavity 13 into a fifth sub-chamber 1301 and a sixth sub-chamber 1302 that are connected to each other, and divides the internal space of the second cavity 14 into a seventh sub-chamber 1401 and an eighth sub-chamber 1402 that are connected to each other; a second partition 16 is provided in both the sixth sub-chamber 1302 and the seventh sub-chamber 1401.

[0043] In this embodiment, a guide hole 1501 is provided in the middle of the guide plate 15; both the first partition plate 6 and the second partition plate 16 have through holes in their middle portions; the diameter of the through holes is smaller than the diameter of the guide hole 1501. Optionally, the diameter of the guide hole 1501 on the guide plate 15 is 14 mm, and the diameters of the through holes 601 on the first partition plate 6 and 1601 on the second partition plate 16 are both 10-12 mm.

[0044] The first manifold 110 includes an inlet cavity 1 and an outlet cavity 2 arranged side by side and fitted together. The upper ends of the inlet cavity 1 and the outlet cavity 2 are provided with inlet and outlet plugs 3, which are used to introduce the cold medium before heat exchange into the inlet cavity 1 and to discharge the cold medium after heat exchange into the outlet cavity 2. The interior of the inlet cavity 1 and the outlet cavity 2 is provided with a baffle 5 in the middle position, which divides the inlet cavity 1 and the outlet cavity 2 into two independent sub-chambers. The upper chamber of the inlet cavity 1 and the outlet cavity 2 (i.e., the first sub-chamber 101 and the third sub-chamber 201) is provided with at least one first baffle 6 along the length direction, which is used to regulate the flow rate of the cold medium in the chamber. The lower chamber of the inlet cavity 1 and the outlet cavity 2 (i.e., the second sub-chamber 102 and the fourth sub-chamber 202) is provided with a plurality of flow holes 7 evenly opened on the adjacent side walls, which are used to make the cold medium in the second sub-chamber 102 flow evenly into the fourth sub-chamber 202. Optionally, the diameter of the flow passage 7 is 5 to 8 mm.

[0045] The second manifold 120 includes a first cavity 13 and a second cavity 14 arranged side by side and fitted together. Both the upper and lower ends of the first cavity 13 and the second cavity 14 are provided with caps 4 to close the ends of the cavities and form a sealed cavity space. A guide plate 15 is provided in the middle inside the first cavity 13 and the second cavity 14 to divide the first cavity 13 and the second cavity 14 into two connected sub-cavities. The lower cavity of the first cavity 13 and the upper cavity of the second cavity 14 may be provided with the same or different number of second partitions 16 along the length direction.

[0046] In summary, the manifold structure of this embodiment divides the manifold into upper and lower sub-chambers by baffle 5 and guide plate 15, forming a multi-stage flow path, extending the heat exchange path of the cold medium, and improving heat exchange efficiency. At the same time, by setting baffles, the flow rate inside the manifold chamber can be adjusted, avoiding the problem of insufficient heat exchange due to excessively high local flow velocity or flow stagnation due to excessively low flow velocity, thus improving heat exchange uniformity.

[0047] In a preferred embodiment, reference Figure 5 and Figure 11 The inlet / outlet plug 3 includes a mounting base plate 301, an inlet connector 302, and an outlet connector 303. The mounting base plate 301 has a first recess 304 adapted to the inlet cavity 1 and a second recess 305 adapted to the outlet cavity 2 on the side facing the cavity. The first recess 304 has a first positioning hole 306 at its center, and the second recess 305 has a second positioning hole at its center. The inlet connector 302 is interference-fitted and fixed in the first positioning hole 306, and the outlet connector 303 is interference-fitted and fixed in the second positioning hole. The size of the inlet connector 302 is smaller than the size of the outlet connector 303.

[0048] That is, the inlet and outlet plug 3 is mainly composed of a mounting base plate 301, an inlet connector 302, and an outlet connector 303. The mounting base plate 301 has a first recess 304 and a second recess 305 of the same depth on the side facing the tube cavity. The first recess 304 is adapted to the size of the inlet tube cavity 1, and the second recess 305 is adapted to the size of the outlet tube cavity 2. Optionally, the depth of the first recess 304 and the second recess 305 is 5-10 mm. The outer diameter of the straight end of the inlet connector 302 (i.e., the end facing the mounting base plate 301) is adapted to the inner diameter of the first positioning hole in the center of the first recess 304 to achieve an interference fit. The outer diameter of the straight end of the outlet connector 303 is adapted to the inner diameter of the second positioning hole in the center of the second recess 305 to achieve an interference fit. The diameter of the first positioning hole is smaller than the diameter of the second positioning hole, matching the size difference between the inlet connector 302 and the outlet connector 303.

[0049] Understandably, the inlet / outlet plug 3 in this embodiment achieves tight fixation with the inlet / outlet pipe cavity 2 through the recessed design; and the use of positioning holes with different diameters to adapt to joints of different sizes can ensure the heat exchange medium flow efficiency.

[0050] Further, refer to Figure 5 The mounting base plate 301 has a surrounding portion 306 at its corners.

[0051] That is, a surrounding portion 306 is provided at the four corners of the mounting base plate 301 or at two corners on the same side, and the arc-shaped inner wall of the surrounding portion 306 is tightly fitted to the outer wall of the cavity. It can be understood that, by providing the corner surrounding portions 306, the inlet and outlet plug cap 3 of this embodiment effectively prevents the mounting base plate 301 and the cavity mating surface from separating under external force, improves structural stability, and enables rapid alignment.

[0052] In a preferred embodiment, the inner wall of the first manifold 110 is provided with a baffle mounting groove and a first partition mounting groove, and the outer wall of the first manifold 110 is provided with a first opening corresponding to the position of the baffle mounting groove and a second opening corresponding to the position of the first partition mounting groove; one end of the baffle 5 is fixed in the baffle mounting groove, and the other end passes through the first opening; one end of the first partition 6 is fixedly connected to the first partition mounting groove, and the other end passes through the second opening.

[0053] Furthermore, the inner wall of the second manifold 120 is provided with a guide plate positioning groove and a second partition plate positioning groove, and the outer wall of the first manifold 110 is provided with a third opening corresponding to the position of the guide plate positioning groove and a fourth opening corresponding to the position of the second partition plate positioning groove; one end of the guide plate 15 is fixed in the guide plate mounting groove, and the other end passes through the third opening; one end of the second partition plate 16 is fixedly connected to the second partition plate mounting groove, and the other end passes through the fourth opening.

[0054] In a preferred embodiment, the first manifold 110 is provided with first insertion holes 12 at equal intervals along its length, and the second manifold 120 is provided with second insertion holes 17 at equal intervals along its length, corresponding to the positions of the first insertion holes 12.

[0055] That is, the two manifolds are provided with corresponding insertion holes at equal intervals along their length. These insertion holes are used to install heat exchange tubes, and the positions of the insertion holes of the manifolds do not coincide with the positions of the mounting grooves on the inner walls of the manifolds. In other words, the mounting grooves are located between two adjacent insertion holes.

[0056] Based on the same inventive concept, this utility model also provides a parallel flow evaporator, referring to... Figure 12 and Figure 13 In one embodiment, the parallel flow evaporator includes a heat exchange core 130 and a manifold structure as described in any of the above embodiments; the heat exchange core 130 includes a heat exchange tube 131, heat dissipation fins 132, and a side plate 133; the heat exchange tube 131 is disposed between the first manifold 110 and the second manifold 120, the heat dissipation fins 132 are disposed on the upper and lower surfaces of the heat exchange tube 131, and the side plate 133 is disposed outside the outermost heat dissipation fins 132.

[0057] That is, the parallel flow evaporator of this embodiment includes a first manifold 110, a second manifold 120 arranged opposite to each other, and a heat exchange core 130 disposed between the first manifold 110 and the second manifold 120. The specific structures of the first manifold 110 and the second manifold 120 are as described in the above embodiment and will not be repeated here. The heat exchange core 130 mainly includes several heat exchange tubes 131, several heat dissipation fins 132, and two side plates 133. The number N of heat exchange tubes 131 is the same as the number of insertion holes of the manifold, and the number M of heat dissipation fins 132 is N plus one, to ensure that each heat exchange tube 131 has heat dissipation fins 132 on both its upper and lower surfaces. The two side plates 133 are disposed outside the outermost heat dissipation fins 132 and are used to fix the overall structure.

[0058] Understandably, in this embodiment of the parallel flow evaporator, the heat exchange medium flow path is as follows: the heat exchange medium first enters the first sub-chamber 101 of the inlet tube 1, changes its flow direction under the action of the baffle, and flows into the fifth sub-chamber 1301 of the first tube 13 through the first sub-chamber 101; after being guided by the guide plate 15, the heat exchange medium flows evenly into the sixth sub-chamber 1302 of the first tube 13, and flows into the second sub-chamber 102 of the inlet tube 1 through the refrigerant pipe; it flows into the fourth sub-chamber 202 of the outlet tube 2 through the flow hole 7, and then flows into the eighth sub-chamber 1402 of the second tube 14 through the heat exchange tube 131; under the action of the guide plate 15, it flows into the seventh sub-chamber 1401 of the second tube 14, and finally flows into the third sub-chamber 201 of the outlet tube 2 through the heat exchange tube 131, and is discharged from the third sub-chamber 201. The heat exchange medium flows in the heat exchange tube 131, realizing heat exchange. When it enters the parallel flow evaporator, it is in a liquid state, and when it comes out of the parallel flow evaporator, it is transformed into a gaseous state after heat exchange.

[0059] In summary, the parallel flow evaporator of this embodiment, through the synergistic effect of multi-stage chambers, baffles 5, and guide plates 15, can ensure that the heat exchange medium is evenly distributed in each flow path. By adjusting the baffle layout (including the position, spacing, and number of baffles), flow resistance control can be achieved, thereby making the heat dissipation surface temperature distribution of the parallel flow evaporator more uniform. According to the test, the heat dissipation surface temperature difference can be controlled within the range of ±1.5℃.

[0060] In a preferred embodiment, reference Figure 14 and Figure 15 The heat exchange tube 131 is provided with at least one flow divider 1311 inside, which divides the heat exchange tube 131 into multiple parallel flow paths.

[0061] For example, such as Figure 14 As shown, eleven flow dividers 1311 are arranged axially inside the heat exchange tube 131, dividing the inner cavity of the heat exchange tube 131 into twelve independent parallel flow paths.

[0062] Understandably, by setting multiple parallel flow paths, the heat exchange tube 131 in this embodiment can avoid the flow dead zone caused by a single flow path, ensure that the heat exchange medium flows fully, and at the same time, the parallel flow paths make the heat exchange medium contact the tube wall more evenly, thereby improving the overall heat exchange efficiency.

[0063] The above are merely preferred embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A manifold structure, comprising a first manifold and a second manifold symmetrically arranged, characterized in that, The first manifold includes an inlet cavity and an outlet cavity that fit together. Inlet and outlet caps and seals are respectively provided at both ends of the inlet cavity and the outlet cavity. A baffle is provided inside the middle section of both the inlet cavity and the outlet cavity. The baffle divides the internal space of the inlet cavity into a first sub-chamber and a second sub-chamber that are not interconnected, and divides the internal space of the outlet cavity into a third sub-chamber and a fourth sub-chamber that are not interconnected. A first partition is provided inside both the first and third sub-chambers. Flow holes are provided on the adjacent sidewalls of the second and fourth sub-chambers. The second manifold includes a first cavity and a second cavity that fit together. Both ends of the first cavity and the second cavity are provided with the caps. A guide plate is provided inside the middle section of the first cavity and the second cavity. The guide plate divides the internal space of the first cavity into a fifth sub-chamber and a sixth sub-chamber that are connected to each other, and divides the internal space of the second cavity into a seventh sub-chamber and an eighth sub-chamber that are connected to each other. A second partition is provided in both the sixth sub-chamber and the seventh sub-chamber.

2. The manifold structure as described in claim 1, characterized in that, The guide plate is provided with guide holes.

3. The manifold structure as described in claim 2, characterized in that, Both the first partition and the second partition have through holes in their middle sections.

4. The manifold structure as described in claim 1, characterized in that, The inlet and outlet plugs include a mounting base, an inlet connector, and an outlet connector; the mounting base has a first recess adapted to the inlet cavity and a second recess adapted to the outlet cavity on the side facing the cavity; the first recess has a first positioning hole at its center, and the second recess has a second positioning hole at its center; the inlet connector is interference-fitted and fixed in the first positioning hole, and the outlet connector is interference-fitted and fixed in the second positioning hole; the size of the inlet connector is smaller than the size of the outlet connector.

5. The manifold structure as described in claim 4, characterized in that, The mounting base plate has surrounding portions at its corners.

6. The manifold structure as described in claim 1, characterized in that, The inner wall of the first collector pipe is provided with a baffle mounting groove and a first partition mounting groove, and the outer wall of the first collector pipe is provided with a first opening corresponding to the position of the baffle mounting groove and a second opening corresponding to the position of the first partition mounting groove; one end of the baffle is fixed in the baffle mounting groove, and the other end passes through the first opening; one end of the first partition is fixedly connected to the first partition mounting groove, and the other end passes through the second opening.

7. The manifold structure as described in any one of claims 1-6, characterized in that, The first manifold has first insertion holes spaced at equal intervals along its length, and the second manifold has second insertion holes spaced at equal intervals along its length, corresponding to the positions of the first insertion holes.

8. A parallel flow evaporator, characterized in that, The device includes a heat exchange core and a manifold structure as described in any one of claims 1-7; the heat exchange core includes a heat exchange tube, heat dissipation fins, and a side plate; the heat exchange tube is disposed between the first manifold and the second manifold, the heat dissipation fins are disposed on the upper and lower surfaces of the heat dissipation fins, and the side plate is disposed on the outermost side of the heat dissipation fins.

9. The parallel flow evaporator as described in claim 8, characterized in that, The heat exchange tube is provided with at least one flow divider, which divides the heat exchange tube into multiple parallel flow paths.