A shunt device, heat exchanger structure and air conditioner

Abstract

This invention provides a flow-diverting device, a heat exchanger structure, and an air conditioner, belonging to energy-saving refrigeration and air conditioning equipment. The flow-diverting device includes a flow-diverting plate structure with flow-diverting channels. Each flow-diverting channel has a first heat exchange medium inlet and N1 first heat exchange medium outlets. The flow-diverting channels divide the heat exchange medium at the first heat exchange medium inlet into N1 streams, which are then discharged one-to-one from the N1 first heat exchange medium outlets. The flow-diverting plate structure also includes a heat insulation structure, which separates the flow-diverting plate structure into two or more different heat insulation regions. The flow-diverting plate structure also includes a set flow path, which allows the heat exchange medium to flow into the heat exchanger and discharges the flowing heat exchange medium. The set flow path and the flow-diverting channels are respectively located in different heat insulation regions. According to this invention, parasitic heat conduction can be reduced, effectively decreasing the heat exchange between the heat exchange medium in the set flow path and the flow-diverting channels through the plate of the flow-diverting plate structure.

Description

Technical Field

[0001] This invention belongs to the field of air conditioning technology, specifically relating to a flow distribution device, a heat exchanger structure, and an air conditioner, which are energy-saving refrigeration and air conditioning equipment. Background Technology

[0002] Existing technology discloses a method of using a flow-dividing device to divert heat exchange media, such as refrigerant. The flow-dividing device has a flow-dividing plate structure with flow-dividing paths. Each flow-dividing path has a first heat exchange medium inlet and N1 first heat exchange medium outlets, where N1 is a positive integer greater than or equal to 2. The N1 first heat exchange medium outlets are used to connect one-to-one with N1 heat exchange tubes on the heat exchanger. The flow-dividing paths are used to divide the heat exchange medium at the first heat exchange medium inlet into N1 streams, which are then discharged one-to-one from the N1 first heat exchange medium outlets.

[0003] The flow divider structure may also include a set flow path, which connects to the heat exchange tubes of the heat exchanger to allow the heat exchange medium to flow into the tubes and to discharge the flowing heat exchange medium. Because the heat exchange medium in the set flow path has undergone heat exchange with the heat exchanger, there is a temperature difference between the heat exchange medium in the set flow path and the heat exchange medium in the flow divider path. This creates low-temperature and high-temperature zones on the flow divider structure. Since heat is conducted laterally through the flow divider structure (parasitic heat transfer), the low-temperature zone absorbs heat or the high-temperature zone dissipates heat, increasing ineffective heat exchange between the hot and cold heat exchange media. When the flow divider is used in an air conditioning system, it reduces the system's energy efficiency ratio. Therefore, this invention designs a flow divider, a heat exchanger structure, and an air conditioner, belonging to energy-saving refrigeration and air conditioning equipment. Summary of the Invention

[0004] Therefore, the present invention provides a flow splitting device, a heat exchanger structure, and an air conditioner, which belong to energy-saving refrigeration and air conditioning equipment. The technical problem to be solved is: how to reduce the heat exchange of the heat exchange medium in the set flow path and the split flow path through the plate of the flow splitting plate structure, and improve the energy efficiency ratio of the air conditioning system applied by the flow splitting device.

[0005] To address the aforementioned problems, this invention provides a flow-diverting device, comprising a flow-diverting plate structure with a flow-diverting path. The flow-diverting path has a first heat exchange medium inlet and N1 first heat exchange medium outlets, where N1 is a positive integer greater than or equal to 2. The flow-diverting path is used to divert the heat exchange medium from the first heat exchange medium inlet into N1 streams, which are then discharged one-to-one from the N1 first heat exchange medium outlets. The flow-diverting plate structure also includes a heat insulation structure, which is used to separate two or more different heat insulation regions on the flow-diverting plate structure. Furthermore, the flow-diverting plate structure includes a set flow path, which is used to allow heat exchange medium to flow into the heat exchanger and to discharge the flowing heat exchange medium. The set flow path and the flow-diverting path are respectively located in different heat insulation regions.

[0006] In some embodiments, the set flow path includes a series flow path having a second heat exchange medium inlet and a second heat exchange medium outlet. The series flow path supplies heat exchange medium to the heat exchanger through the second heat exchange medium inlet and discharges the inflowing heat exchange medium through the second heat exchange medium outlet.

[0007] In some embodiments, the defined flow path includes a collection flow path having a third heat exchange medium outlet and two or more third heat exchange medium inlets. The collection flow path supplies heat exchange medium to the heat exchanger through each of the third heat exchange medium inlets and collects the heat exchange medium from each of the third heat exchange medium inlets to the third heat exchange medium outlet for discharge.

[0008] In some embodiments, when the set flow path includes a series flow path having a second heat exchange medium inlet and a second heat exchange medium outlet, the series flow path supplies heat exchange medium to the heat exchanger through the second heat exchange medium inlet and discharges the inflowing heat exchange medium through the second heat exchange medium outlet, the series flow path and the collecting flow path are respectively set in different insulation areas.

[0009] In some embodiments, the thermal insulation structure includes a thermal insulation groove, which divides the flow divider structure into two or more different thermal insulation zones.

[0010] In some embodiments, the flow divider structure includes two or more flow path plates stacked sequentially, and the heat insulation groove passes through each flow path plate sequentially to divide each flow path plate into two or more sub-heat insulation regions. The number of sub-heat insulation regions on each flow path plate is equal and corresponds one-to-one. The corresponding sub-heat insulation regions on each flow path plate cooperate to form a single heat insulation region.

[0011] In some embodiments, when the set flow path includes a series flow path having a second heat exchange medium inlet and a second heat exchange medium outlet, the series flow path supplies heat exchange medium to the heat exchanger through the second heat exchange medium inlet and discharges the flowing heat exchange medium through the second heat exchange medium outlet; and the set flow path includes a collection flow path having a third heat exchange medium outlet and two or more third heat exchange medium inlets, the collection flow path supplies heat exchange medium to the heat exchanger through each of the third heat exchange medium inlets and collects the heat exchange medium from each of the third heat exchange medium inlets to the third heat exchange medium outlet for discharge; and when the series flow path and the collection flow path are respectively set in different insulation areas, the branch flow path, the series flow path, and the collection flow path each form a partial flow path segment in the corresponding sub-insulation area of ​​each flow path plate.

[0012] In some embodiments, the flow path plates located at both ends of the stacking direction in each of the flow path plates are respectively flow path plate A and flow path plate D; wherein, the first heat exchange medium inlet and the third heat exchange medium outlet are both disposed on the flow path plate A, and the second heat exchange medium inlet, the second heat exchange medium outlet, each of the first heat exchange medium outlets and each of the third heat exchange medium inlets are all disposed on the flow path plate D.

[0013] In some embodiments, a B flow path board and a C flow path board are stacked between the A flow path board and the D flow path board, and the B flow path board is located between the A flow path board and the C flow path board.

[0014] In some embodiments, the diversion flow path includes a B1 diversion channel and two first branch flow paths connected in sequence. The B1 diversion channel is connected to the first heat exchange medium inlet and is used to divert the heat exchange medium at the first heat exchange medium inlet into two streams that flow out from the two first branch flow paths respectively. Each first branch flow path includes an A1 through flow path, a B1 through flow path, an A1 diversion channel, and two second branch flow paths connected in sequence. The first branch flow path is connected to the B1 through flow path via the A1 through flow path. The A1 diversion channel is connected to the B1 flow channel to split the heat exchange medium in the B1 flow channel into two streams that flow out from the two corresponding second branch flow paths. Each second branch flow path includes a B2 flow channel, a C1 diversion channel, and two first heat exchange medium outlets that are connected in sequence. The second branch flow path is connected to the A1 diversion channel through the B2 flow channel. The C1 diversion channel is used to split the heat exchange medium in the B2 flow channel into two streams that flow out from the two corresponding first heat exchange medium outlets.

[0015] The A1 flow channel and the A1 branch flow channel are both located on the A flow path board, the B1 branch flow channel, the B1 flow channel and the B2 flow channel are all located on the B flow path board, and the C1 branch flow channel is located on the C flow path board.

[0016] In some embodiments, the A flow path board has opposing first A side and second A side, wherein the first A side is opposite to the B flow path board; wherein,

[0017] Both the A1 overflow channel and the A1 branch channel are blind holes located on the first A side;

[0018] Alternatively, both the A1 overflow channel and the A1 branch channel extend from the first A side to the second A side. The branch plate structure also includes a baffle stacked on the second A side. The heat insulation groove extends through the baffle. The baffle blocks the openings of both the A1 overflow channel and the A1 branch channel on the second A side. The baffle is also provided with a first through hole and a second through hole. The first through hole is connected to the first heat exchange medium inlet, and the second through hole is connected to the third heat exchange medium outlet.

[0019] In some embodiments, the series flow path includes C1 flow channel, B3 flow channel, A2 flow channel, B4 flow channel and C2 flow channel connected in sequence; the second heat exchange medium inlet is connected in series on the side of the C1 flow channel away from the B3 flow channel, and the second heat exchange medium outlet is connected in series on the side of the C2 flow channel away from the B4 flow channel.

[0020] The A2 flow channel is disposed on the A flow path board, the B3 and B4 flow channels are disposed on the B flow path board, and the C1 and C2 flow channels are disposed on the C flow path board.

[0021] In some embodiments, the A flow path board has opposing first A side and second A side, wherein the first A side is opposite to the B flow path board; wherein,

[0022] The A2 flow channel is a blind hole located on the first A side;

[0023] Alternatively, the A2 flow channel extends from the first A side to the second A side, and the flow divider structure further includes a baffle stacked on the second A side. The heat insulation groove extends through the baffle, and the baffle blocks the opening of the A2 flow channel on the second A side. The baffle is also provided with a first through hole and a second through hole. The first through hole is connected to the first heat exchange medium inlet, and the second through hole is connected to the third heat exchange medium outlet.

[0024] In some embodiments, the flow path includes a B5 through-flow channel, a C1 flow path, and two third branch flow paths connected in sequence. The side of the B5 through-flow channel opposite to the C1 flow path is connected to the outlet of the third heat exchange medium. The C1 flow path is used to collect the heat exchange medium from the two third branch flow paths into a single stream and introduce it into the B5 through-flow channel. Each third branch flow path includes a B1 flow path and two fourth branch flow paths connected in sequence. The third branch flow path collects the heat exchange medium from the two fourth branch flow paths into a single stream and introduces it into the C1 flow path through the B1 flow path. The fourth branch flow path includes a C3 through-flow channel and a single inlet of the third heat exchange medium corresponding to and connected to the C3 through-flow channel. The fourth branch flow path is connected to the B1 flow path through the C3 through-flow channel.

[0025] The B1 flow channel and the B5 flow channel are disposed on the B flow path board, and the C1 flow channel and the C3 flow channel are disposed on the C flow path board.

[0026] In some embodiments, the flow path includes a B2 flow channel and two fifth branch flow channels connected in sequence. The side of the B2 flow channel away from the fifth branch flow channels is connected to the third heat exchange medium outlet. The B2 flow channel is used to collect the heat exchange medium from the two fifth branch flow channels into one stream and introduce it into the third heat exchange medium outlet.

[0027] Each of the fifth branch flow paths includes a C2 collection channel and two third heat exchange medium inlets. The fifth branch flow path is connected to the B2 collection channel through the C2 collection channel. The C2 collection channel is connected to both third heat exchange medium inlets. The C2 collection channel is used to collect the heat exchange medium from the two third heat exchange medium inlets into a single stream and introduce it into the B2 collection channel.

[0028] The B2 flow channel is disposed on the B flow path board, and the C2 flow channel is disposed on the C flow path board.

[0029] In some embodiments, the present invention also provides a heat exchanger structure comprising a heat exchanger and a flow splitting device as described in any one of the above embodiments.

[0030] In some embodiments, when the set flow path includes a series flow path having a second heat exchange medium inlet and a second heat exchange medium outlet, the series flow path supplies heat exchange medium to the heat exchanger through the second heat exchange medium inlet and discharges the flowing heat exchange medium through the second heat exchange medium outlet; and the set flow path includes a collector flow path having a third heat exchange medium outlet and two or more third heat exchange medium inlets, the collector flow path supplies heat exchange medium to the heat exchanger through each of the third heat exchange medium inlets and collects the heat exchange medium from each of the third heat exchange medium inlets to the third heat exchange medium outlet for discharge; and when the series flow path and the collector flow path are respectively arranged in different insulation areas, the heat exchanger includes a first heat exchange tube, a second heat exchange tube, a third heat exchange tube, and a fourth heat exchange tube, wherein the first heat exchange tube, the second heat exchange tube, the third heat exchange tube, the fourth heat exchange tube, and the third heat exchange medium inlet are respectively arranged in different insulation areas. The number of each of the series flow paths is N1; wherein, each of the first heat exchange tubes has a corresponding first A end and a second A end, each of the second heat exchange tubes has a corresponding first B end and a second B end, each of the third heat exchange tubes has a corresponding first C end and a second C end, and each of the fourth heat exchange tubes has a corresponding first D end and a second D end; the first A end of each of the first heat exchange tubes is connected to the outlet of each of the first heat exchange media in a one-to-one correspondence, the first B end of each of the second heat exchange tubes is connected to the inlet of each of the second heat exchange media in a one-to-one correspondence, the first C end of each of the third heat exchange tubes is connected to the outlet of each of the second heat exchange media in a one-to-one correspondence, and the first D end of each of the fourth heat exchange tubes is connected to the inlet of each of the third heat exchange media in a one-to-one correspondence; the second A end of each of the first heat exchange tubes is connected to the second B end of each of the second heat exchange tubes in a one-to-one correspondence, and the second C end of each of the third heat exchange tubes is connected to the second D end of each of the fourth heat exchange tubes in a one-to-one correspondence.

[0031] In some embodiments, the present invention also provides an air conditioner that includes the flow distribution device described in any one of the above descriptions; or includes the heat exchanger structure described above.

[0032] The flow splitting device, heat exchanger structure, and air conditioner provided by this invention have the following beneficial effects:

[0033] 1. This invention, by setting up a heat insulation structure to separate two or more different heat insulation regions on the flow divider structure, and placing the set flow path and the diverting flow path in different heat insulation regions, can reduce parasitic heat conduction and effectively reduce the heat exchange between the heat exchange medium in the set flow path and the diverting flow path through the plate of the flow divider structure. This reduces ineffective heat exchange between the hot and cold heat exchange mediums, and when the flow divider device is applied to an air conditioning system, it can improve the energy efficiency ratio of the air conditioning system. In addition, the design of the heat insulation structure also alleviates stress concentration caused by different coefficients of thermal expansion to a certain extent, improving the structural life of the flow divider device of this invention, and providing an energy-saving refrigeration and air conditioning equipment.

[0034] 2. In this invention, the first heat exchange medium inlet of the diversion flow path and the third heat exchange medium outlet of the collection flow path are located on the same side of the diversion device, which shortens the length of the external pipe and reduces the overall size of the heat exchanger.

[0035] 3. The diversion device of the present invention ensures the consistency of the heat exchange medium flow in each branch by setting multiple diversions and symmetrical design of the branch length of each diversion, thus solving the problem of uneven diversion of heat exchange medium in one-to-many heat exchange. Attached Figure Description

[0036] To more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below. The drawings described below are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0037] Figure 1 This is an assembly diagram of a diversion device provided in an embodiment of the present invention;

[0038] Figure 2 This is an exploded view of a diversion device provided in an embodiment of the present invention;

[0039] Figure 3 It is a schematic diagram reflecting the series flow paths on the manifold structure;

[0040] Figure 4 This is a schematic diagram reflecting the flow path of the manifold structure in the first example C;

[0041] Figure 5 This is a schematic diagram reflecting the flow path of the manifold structure in example C;

[0042] Figure 6 This is an exploded view of another diversion device provided in an embodiment of the present invention;

[0043] Figure 7 This is a partial schematic diagram of a heat exchanger structure provided in one embodiment of the present invention;

[0044] Figure 8 This is a simplified structural diagram of a heat exchanger structure provided in one embodiment of the present invention.

[0045] The attached figures are labeled as follows:

[0046] 1. Insulation structure; 2. Insulation zone; 3. Flow branch path; 4. Series flow path; 5. Flow collection path; 6. Baffle; 10. Set flow path; 11. Insulation groove; 21. Sub-insulation zone; 31. First heat exchange medium inlet; 32. B1 flow branch channel; 33. A1 flow channel; 34. B1 flow channel; 35. A1 flow branch channel; 36. B2 flow channel; 37. C1 flow branch channel; 38. First heat exchange medium outlet; 41. Second heat exchange medium inlet; 42. C1 flow channel; 43. B3 flow channel; 44. A2 flow channel; 45. B4 flow channel; 46. C2 flow channel; 47. Second heat exchange medium outlet; 51. Third heat exchange medium inlet; 52. C3 flow channel; 53. B1 flow collection channel; 5 4. C1 manifold; 55. B5 flow channel; 56. Third heat exchange medium outlet; 57. C2 manifold; 58. B2 manifold; 61. First through hole; 62. Second through hole; 71. First heat exchange tube; 72. Second heat exchange tube; 73. Third heat exchange tube; 74. Fourth heat exchange tube; 100. Flow divider structure; 101. A flow path plate; 102. B flow path plate; 103. C flow path plate; 104. D flow path plate; 200. Heat exchanger; 101a. First A side; 101b. Second A side; 711. First A end; 712. Second A end; 721. First B end; 722. Second B end; 731. First C end; 732. Second C end; 741. First D end; 742. Second D end; 1a. Flow path plate. Detailed Implementation

[0047] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present invention or its application or use. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0048] In the description of this invention, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is generally based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this invention and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this invention; the directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0049] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0050] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore should not be construed as limiting the scope of protection of this invention.

[0051] See also Figure 1-5 As shown, according to an embodiment of the present invention, a flow-diverting device is provided, which includes a flow-diverting plate structure 100, on which a flow-diverting path 3 is provided. The flow-diverting path 3 has a first heat exchange medium inlet 31 and N1 first heat exchange medium outlets 38. N1 is a positive integer greater than or equal to 2. The flow-diverting path 3 is used to divert the heat exchange medium from the first heat exchange medium inlet 31 into N1 streams, which are discharged one-to-one from the N1 first heat exchange medium outlets 38. Optionally, the N1 first heat exchange medium outlets 38 are used to communicate one-to-one with the N1 heat exchange tubes on the heat exchanger 200.

[0052] like Figure 1 As shown, the flow divider structure 100 is also provided with a heat insulation structure 1, which is used to divide the flow divider structure 100 into two or more different heat insulation regions 2. The aforementioned flow divider structure 100 is also provided with a set flow path 10, which is used to allow the heat exchange medium of the heat exchanger 200 to flow in and to discharge the flowing heat exchange medium. The set flow path 10 and the flow divider flow path 3 are respectively set in different heat insulation regions 2.

[0053] In the above example, the heat exchange medium in the set flow path 10 undergoes heat exchange through the heat exchanger 200, resulting in a temperature difference between the heat exchange medium in the set flow path 10 and the heat exchange medium in the branch flow path 3. This creates low-temperature and high-temperature zones on the branch plate structure 100. The present invention addresses this by using an insulation structure 1 to separate two or more different insulation regions 2 on the branch plate structure 100, and by placing the set flow path 10 and the branch flow path 3 in different insulation regions 2. This reduces parasitic heat conduction and effectively decreases the heat exchange between the heat exchange mediums in the set flow path 10 and the branch flow path 3 through the plate of the branch plate structure 100, reducing ineffective heat exchange between the hot and cold heat exchange media. When the branch device is applied to an air conditioning system, it can improve the energy efficiency ratio of the air conditioning system. Furthermore, the design of the insulation structure 1 also alleviates stress concentration caused by different coefficients of thermal expansion to a certain extent, improving the structural lifespan of the branch device of the present invention and providing an energy-saving refrigeration and air conditioning device.

[0054] It should be noted that the aforementioned heat exchange medium can be a refrigerant.

[0055] In some implementations, N1 is an even number. Of course, N1 can also be an odd number, depending on the specific circumstances.

[0056] In some implementations, such as Figure 1 As shown, the aforementioned heat insulation regions 2 are arranged sequentially along the length of the diversion plate structure 100 to make full use of the space along the length of the diversion plate structure 100.

[0057] In some implementations, such as Figure 3 As shown, the aforementioned set flow path 10 may include a series flow path 4, which has a second heat exchange medium inlet 41 and a second heat exchange medium outlet 47. The series flow path 4 supplies heat exchange medium to the heat exchanger 200 through the second heat exchange medium inlet 41 and discharges the flowing heat exchange medium through the second heat exchange medium outlet 47. Optionally, the second heat exchange medium inlet 41 and the second heat exchange medium outlet 47 are used to connect to different heat exchange tubes on the heat exchanger 200, so that the heat exchange tube connected to the second heat exchange medium inlet 41 is connected in series with the heat exchange tube connected to the second heat exchange medium outlet 47.

[0058] In the above example, the series flow path 4 facilitates the application of the flow splitting device of the present invention in situations where it is necessary to connect two heat exchange tubes on the heat exchanger 200 in series, thereby increasing the application scenarios of the flow splitting device of the present invention and improving its versatility.

[0059] In some implementations, such as Figure 1-3As shown, there are two or more series flow paths 4, and each series flow path 4 is divided into two groups. The two groups of series flow paths 4 are symmetrically distributed on both sides of the insulation area where the branch flow path 3 is located, and the two groups of series flow paths 4 are located in different insulation areas 2.

[0060] In the above example, by designing two or more series flow paths 4, it is advantageous to apply the flow distribution device of the present invention to occasions where it is necessary to connect more heat exchange tubes on the heat exchanger 200 in series, thereby further increasing the application scenarios of the flow distribution device of the present invention and improving its versatility. In addition, by dividing the series flow paths 4 into two groups and symmetrically distributing them on both sides of the heat insulation area 2 where the flow distribution path 3 is located, the series flow paths 4 are evenly distributed on the flow distribution plate structure 100, which helps to reduce stress concentration on the flow distribution plate structure 100.

[0061] In some implementations, such as Figure 1-3 As shown, there are four series flow paths 4 in each of the aforementioned groups. The structures of each series flow path 4 are consistent to ensure that the heat exchange medium flow length is consistent in each series flow path 4, thus ensuring the consistency of the heat exchange medium flow within each series flow path 4.

[0062] In some implementations, such as Figure 4 As shown, the aforementioned flow path 10 may include a collecting flow path 5. The collecting flow path 5 has a third heat exchange medium outlet 56 and two or more third heat exchange medium inlets 51. The collecting flow path 5 supplies heat exchange medium from the heat exchanger 200 through each third heat exchange medium inlet 51 and collects the heat exchange medium from each third heat exchange medium inlet 51 to the third heat exchange medium outlet 56 for discharge. Optionally, the number of third heat exchange medium inlets 51 is N2, and N2 third heat exchange medium inlets 51 are used to connect one-to-one with N2 heat exchange tubes on the heat exchanger 200. In some embodiments, N2 is an even number. Of course, N2 can also be an odd number, which can be determined according to the actual situation.

[0063] In the above example, the flow collection path 5 facilitates the application of the flow distribution device of the present invention in situations where it is necessary to collect and export the heat exchange medium from the heat exchange tubes inside the heat exchanger 200, thereby increasing the application scenarios of the flow distribution device of the present invention and improving its versatility.

[0064] In some implementations, such as Figure 2 and Figure 4 As shown, there can be two flow collection paths 5, which are symmetrically distributed on both sides of the insulation area 2 where the flow distribution path 3 is located, and the two flow collection paths 5 are located in different insulation areas 2.

[0065] In the above example, by designing two flow collection paths 5, the flow distribution device of the present invention can be applied to occasions where it is necessary to collect and discharge the heat exchange medium from the heat exchange tubes of more heat exchangers 200, thereby further increasing the application scenarios of the flow distribution device of the present invention and improving its versatility. In addition, by designing two flow collection paths 5 and symmetrically distributing them on both sides of the insulation area where the flow distribution path 3 is located, the flow collection paths 5 are evenly distributed on the flow distribution plate structure 100, which helps to reduce stress concentration on the flow distribution plate structure 100; and it also ensures that the heat exchange medium flow length of the two flow collection paths 5 is consistent, thus ensuring the consistency of the heat exchange medium flow within the two flow collection paths 5.

[0066] In some implementations, such as Figure 1-2 As shown, the two sets of flow paths 5 are also symmetrically arranged about the center line of the first heat exchange medium inlet 31.

[0067] In some implementations, such as Figure 1-4 As shown, the aforementioned series flow path 4 and the collector flow path 5 are respectively set in different heat insulation areas 2. This can reduce the ineffective heat exchange of the heat exchange medium inside the series flow path 4 and the collector flow path 5 through the plate of the split plate structure 100, and further improve the energy efficiency ratio of the air conditioning system used by the split device.

[0068] To achieve the function of the aforementioned thermal insulation structure 1, in some embodiments, such as Figure 1 As shown, the aforementioned heat insulation structure 1 may include a heat insulation groove 11, and the heat insulation structure 1 divides two or more different heat insulation areas 2 on the diversion plate structure 100 through the heat insulation groove 11.

[0069] In the example above, the interior of the heat insulation groove 11 is filled with air. Compared with the plate of the diversion plate structure 100, the heat transfer performance of air is relatively low, thus it can play a role in heat insulation.

[0070] In some implementations, such as Figure 1-2 As shown, the aforementioned flow divider structure 100 may include two or more flow path plates 1a stacked sequentially, with heat insulation grooves 11 penetrating each flow path plate 1a to divide each flow path plate 1a into two or more sub-heat insulation regions 21. The number of sub-heat insulation regions 21 on each flow path plate 1a is equal and corresponds one-to-one. The corresponding sub-heat insulation regions 21 on each flow path plate 1a cooperate to form a single heat insulation region 2.

[0071] It should be noted that: the number of heat insulation areas 2 on the flow divider structure 100 is M, and the number of sub-heat insulation areas 21 on each flow path plate 1a is also M. A single sub-heat insulation area 21 on a flow path plate 1a cooperates with the corresponding sub-heat insulation area 21 on other flow path plates 1a to form a single heat insulation area 2. A single sub-heat insulation area 21 on a flow path plate 1a is opposite to the corresponding sub-heat insulation area 21 on the adjacent flow path plate 1a. Different sub-heat insulation areas 21 on a flow path plate 1a cooperate with the corresponding sub-heat insulation areas 21 on other flow path plates 1a to form different heat insulation areas 2.

[0072] In the above example, designing the flow divider structure 100 as two or more flow path plates 1a stacked sequentially offers the advantage of easy manufacturing. Furthermore, by having the heat insulation groove 11 sequentially pass through each flow path plate 1a, and by having the heat insulation groove 11 divide each flow path plate 1a into a sub-insulation region 21, parasitic heat conduction through the flow path plates 1a between the heat exchange medium in the main flow path 10 and the branch flow path 3 can be reduced.

[0073] In some implementations, such as Figure 2 As shown, each of the aforementioned branch flow path 3, series flow path 4 and collection flow path 5 has a partial flow path segment in the corresponding sub-insulation area 21 on each flow path plate 1a. This is beneficial for making full use of the space of each flow path plate 1a and facilitates the processing of branch flow path 3, series flow path 4 and collection flow path 5.

[0074] In some implementations, such as Figure 2-4 As shown, the flow path plates 1a located at both ends of the stacking direction in the aforementioned flow path plates 1a are flow path plate A 101 and flow path plate D 104, respectively. The aforementioned first heat exchange medium inlet 31 and third heat exchange medium outlet 56 are both located on flow path plate A 101, and the second heat exchange medium inlet 41, second heat exchange medium outlet 47, each first heat exchange medium outlet 38, and each third heat exchange medium inlet 51 are all located on flow path plate D 104.

[0075] In the above example, by setting the first heat exchange medium inlet 31 of the split flow path 3 and the third heat exchange medium outlet 56 of the collection flow path 5 on the A flow path plate 101, the heat exchange medium inlets and outlets of the split device are arranged on the same side, shortening the length of the external pipe and reducing the overall size of the heat exchanger 200. In addition, by setting the second heat exchange medium inlet 41 and the second heat exchange medium outlet 47 of the series flow path 4, each first heat exchange medium outlet 38 of the split flow path 3, and each third heat exchange medium inlet 51 of the collection flow path 5 on the D flow path plate 104, the heat exchange tubes of the heat exchanger 200 can all be installed on the same flow path plate, i.e., the D flow path plate 104, which has the advantage of facilitating the installation of the heat exchanger 200.

[0076] In some implementations, such as Figure 2As shown, a B flow path 102 and a C flow path 103 are stacked between the aforementioned A flow path 101 and D flow path 104, with the B flow path 102 located between the A flow path 101 and the C flow path 103.

[0077] In the above example, by stacking B flow path 102 and C flow path 103 between A flow path 101 and D flow path 104, the number of flow path boards can be increased, so that each flow path forms a partial flow path on each flow path board, which is beneficial to the processing of the flow path.

[0078] In some implementations, such as Figure 2 As shown, the aforementioned diversion flow path 3 may include a B1 diversion channel 32 and two first branch flow paths connected in sequence. The B1 diversion channel 32 is connected to the first heat exchange medium inlet 31 and is used to divert the heat exchange medium from the first heat exchange medium inlet 31 into two streams that flow out from the two first branch flow paths respectively. Each first branch flow path includes an A1 through flow channel 33, a B1 through flow channel 34, an A1 diversion channel 35, and two second branch flow paths connected in sequence. The first branch flow path is connected to the B1 diversion channel 32 through the A1 through flow channel 33. The A1 diversion channel 35 is used to divert the heat exchange medium from the B1 through flow channel 34 into two streams that flow out from the two second branch flow paths respectively. Each second branch flow path includes a B2 through flow channel 36, a C1 branch flow channel 37, and two first heat exchange medium outlets 38 connected in sequence. The second branch flow path is connected to the A1 branch flow channel 35 through the B2 through flow channel 36. The C1 branch flow channel 37 is used to split the heat exchange medium in the B2 through flow channel 36 into two streams that flow out from the two first heat exchange medium outlets 38 respectively. Among them, the A1 through flow channel 33 and the A1 branch flow channel 35 are both set on the A flow path plate 101, the B1 branch flow channel 32, the B1 through flow channel 34, and the B2 through flow channel 36 are all set on the B flow path plate 102, and the C1 branch flow channel 37 is set on the C flow path plate 103.

[0079] In the above example, the A1 flow channel 33, A1 branch flow channel 35, B1 branch flow channel 32, B1 flow channel 34, B2 flow channel 36, C1 branch flow channel 37, the first heat exchange medium inlet 31 and the first heat exchange medium outlet 38 can be combined to form the aforementioned branch flow path 3, which realizes the function of the branch flow path 3 to divide the heat exchange medium in the first heat exchange medium inlet 31 into N1 streams and output them one by one from the N1 first heat exchange medium outlets 38.

[0080] It should be noted that in the above example, such as Figure 2As shown, the branch flow path 3 has one first heat exchange medium inlet 31, two A1 branch flow channels 35, two A1 through flow channels 33, one B1 branch flow channel 32, two B1 through flow channels 34, four B2 through flow channels 36, four C1 branch flow channels 37, and eight first heat exchange medium outlets 38. Each first branch flow path has one A1 through flow channel 33, one B1 through flow channel 34, one A1 branch flow channel 35, two B2 through flow channels 36, two C1 branch flow channels 37, and four first heat exchange medium outlets 38. Each second branch flow path has one B2 through flow channel 36, one C1 branch flow channel 37, and two first heat exchange medium outlets 38.

[0081] In some implementations, such as Figure 2 As shown, the extension directions of the aforementioned B1 diversion channel 32 and C1 diversion channel 37 are consistent with the width direction of the diversion plate structure 100. Typically, when the diversion device is in use, the width direction of the diversion plate structure 100 is horizontal. However, this invention designs the extension directions of the B1 diversion channel 32 and C1 diversion channel 37 to be consistent with the width direction of the diversion plate structure 100, making both the B1 diversion channel 32 and C1 diversion channel 37 horizontal as well. This reduces the influence of gravity on the diversion.

[0082] In some implementations, such as Figure 2 As shown, the A1 flow channels 33 of the two first branch flow paths are symmetrical about the centerline of the first heat exchange medium inlet 31, and are staggered in both the width and length directions of the flow divider structure 100. The A1 branch flow channels 35 of the two first branch flow paths are symmetrical about the centerline of the first heat exchange medium inlet 31, and are also symmetrical in the length direction of the flow divider structure 100.

[0083] The design of the A1 flow channel 33 and the A1 branch flow channel 35 on the A flow path plate 101, as described above, helps to make full use of the space in the length and width directions of the A flow path plate 101.

[0084] In some implementations, such as Figure 2 As shown, the B1 branch channels 32 of the two first branch flow paths are symmetrical about the centerline of the first heat exchange medium inlet 31, and are staggered in both the width and length directions of the branch plate structure 100. The B1 through channels 34 of the two first branch flow paths are symmetrical about the centerline of the first heat exchange medium inlet 31, and are also symmetrical in the length direction of the branch plate structure 100. The B2 through channels 36 of the two first branch flow paths are symmetrical about the centerline of the first heat exchange medium inlet 31, and are also symmetrical in the length direction of the branch plate structure 100.

[0085] The design of the branch flow path 3, as described above, with symmetrical design of the branch length for each branch, ensures the consistency of the heat exchange medium flow in each branch.

[0086] like Figure 6 As shown, the aforementioned A flow path plate 101 has a first A side 101a and a second A side 101b, with the first A side 101a opposite to the B flow path plate 102. The arrangement of the A1 overflow channel and the A1 branch flow channel 35 on the A flow path plate 101 will be described below with two examples.

[0087] In the first example A, both the A1 through-flow channel and the A1 branch flow channel 35 are blind holes located on the first A side 101a. The heat exchange medium of the B flow path plate 102 can be deflected after flowing through the A1 through-flow channel and the A1 branch flow channel 35 to prevent leakage of the heat exchange medium from the second A side 101b of the A flow path plate 101. The blind holes can be fabricated by machining the A flow path plate 101 into a convex hull, thereby reducing the amount of plate material used.

[0088] In example 2A, such as Figure 6 As shown, both the A1 overflow channel and the A1 branch channel 35 extend from the first A side 101a to the second A side 101b. The branch plate structure 100 also includes a baffle 6 stacked on the second A side 101b. The heat insulation groove 11 passes through the baffle 6, and the baffle 6 blocks the openings of both the A1 overflow channel and the A1 branch channel 35 on the second A side 101b. The baffle 6 is also provided with a first through hole 61 and a second through hole 62. The first through hole 61 is connected to the first heat exchange medium inlet 31, and the second through hole 62 is connected to the third heat exchange medium outlet 56.

[0089] In the second example A above, by using baffle 6 to block the openings of both the A1 overflow channel and the A1 branch channel 35 on the second A side 101b, the heat exchange medium of the B flow path plate 102 can also be turned back after flowing through the A1 overflow channel and the A1 branch channel 35, thereby also preventing the heat exchange medium from leaking from the second A side 101b of the A flow path plate 101.

[0090] In some implementations, such as Figure 3As shown, the aforementioned series flow path 4 may include C1 flow channel 42, B3 flow channel 43, A2 flow channel 44, B4 flow channel 45, and C2 flow channel 46 connected in sequence. The aforementioned second heat exchange medium inlet 41 is connected in series on the side of C1 flow channel 42 opposite to B3 flow channel 43, and the second heat exchange medium outlet 47 is connected in series on the side of C2 flow channel 46 opposite to B4 flow channel 45. Specifically, A2 flow channel 44 is disposed on flow path plate A 101, B3 flow channels 43 and B4 flow channels 45 are disposed on flow path plate B 102, and C1 flow channels 42 and C2 flow channels 46 are disposed on flow path plate C 103.

[0091] In the above example, the C1 flow channel 42, B3 flow channel 43, A2 flow channel 44, B4 flow channel 45, C2 flow channel 46, the second heat exchange medium inlet 41, and the second heat exchange medium outlet 47 cooperate with each other to form the aforementioned series flow path 4, realizing the function of the two heat exchange tubes on the series heat exchanger 200.

[0092] like Figure 6 As shown, the aforementioned A flow path plate 101 has a first A side 101a and a second A side 101b, with the first A side 101a opposite to the B flow path plate 102. The arrangement of the A2 flow channel 44 on the A flow path plate 101 will be described below with two examples.

[0093] In the first example B, the A2 flow channel 44 can be a blind hole provided on the first A side 101a. The heat exchange medium of the B flow plate 102 can be turned back after flowing through the A2 flow channel 44 to prevent the heat exchange medium from leaking from the second A side 101b of the A flow plate 101.

[0094] In example B, such as Figure 6 As shown, the A2 flow channel 44 extends from the first A side 101a to the second A side 101b. The flow divider structure 100 also includes a baffle 6 stacked on the second A side 101b. The heat insulation groove 11 passes through the baffle 6, and the baffle 6 blocks the opening of the A2 flow channel 44 on the second A side 101b. The baffle 6 is also provided with a first through hole 61 and a second through hole 62. The first through hole 61 communicates with the first heat exchange medium inlet 31, and the second through hole 62 communicates with the third heat exchange medium outlet 56.

[0095] In the second example B above, by using baffle 6 to block the opening of the A2 flow channel 44 at the second A side 101b, the heat exchange medium of the B flow plate 102 can also be reversed after flowing through the A2 flow channel 44, thereby also preventing the heat exchange medium from leaking from the second A side 101b of the A flow plate 101.

[0096] The aforementioned flow path 5 can have different structural forms. The structure of the flow path 5 will be explained below with two different examples.

[0097] In the first C example, such as Figure 4 As shown, the aforementioned flow path 5 includes a B5 through-flow channel 55, a C1 flow path 54, and two third branch flow paths connected in sequence. The side of the B5 through-flow channel 55 facing away from the C1 flow path 54 is connected to the third heat exchange medium outlet 56. The C1 flow path 54 is used to collect the heat exchange medium from the two third branch flow paths into a single stream and introduce it into the B5 through-flow channel 55. Each third branch flow path includes a B1 flow path 53 connected in sequence and two fourth branch flow paths. The third branch flow path collects the heat exchange medium from the two fourth branch flow paths into a single stream and introduces it into the C1 flow path 54 through the B1 flow path 53. The fourth branch flow path includes a C3 through-flow channel 52 and a single third heat exchange medium inlet 51 connected to the C3 through-flow channel 52. The fourth branch flow path is connected to the B1 flow path 53 through the C3 through-flow channel 52. Among them, the B1 flow channel 53 and the B5 flow channel 55 are set on the B flow path plate 102, and the C1 flow channel 54 and the C3 flow channel 52 are set on the C flow path plate 103.

[0098] In the first example C above, the B1 collection channel 53, B5 flow channel 55, C1 collection channel 54, C3 flow channel 52, third heat exchange medium inlet 51 and third heat exchange medium outlet 56 can be combined to form the aforementioned collection flow path 5, realizing the function of the aforementioned collection flow path 5 to collect the heat exchange medium from each third heat exchange medium inlet 51 and discharge it to the third heat exchange medium outlet 56.

[0099] It should be noted that in the first C example above, such as Figure 4 As shown, the main flow path 5 has one third heat exchange medium outlet 56, one B5 flow channel 55, one C1 main flow channel 54, two B1 main flow channels 53, four C3 flow channels 52, and four third heat exchange medium inlets 51. Each third branch flow path has one B1 main flow channel 53, two C3 flow channels 52, and two third heat exchange medium inlets 51. Each fourth branch flow path has one C3 flow channel 52 and one third heat exchange medium inlet 51.

[0100] In the second C example, such as Figure 5As shown, the aforementioned flow path 5 may include a B2 flow path 58 and two fifth branch flow paths connected in sequence. The side of the B2 flow path 58 facing away from the fifth branch flow paths is connected to the third heat exchange medium outlet 56. The B2 flow path 58 is used to collect the heat exchange medium from the two fifth branch flow paths into a single stream and introduce it into the third heat exchange medium outlet 56. Each fifth branch flow path includes a C2 flow path 57 and two third heat exchange medium inlets 51. The fifth branch flow path is connected to the B2 flow path 58 through the C2 flow path 57. The C2 flow path 57 is connected to both third heat exchange medium inlets 51 and is used to collect the heat exchange medium from the two third heat exchange medium inlets 51 into a single stream and introduce it into the B2 flow path 58. The B2 flow path 58 is disposed on the B flow path plate 102, and the C2 flow path 57 is disposed on the C flow path plate 103.

[0101] In the second example C above, the B2 collection channel 58, the C2 collection channel 57, the third heat exchange medium inlet 51 and the third heat exchange medium outlet 56 can be combined to form the aforementioned collection path 5, realizing the function of the aforementioned collection path 5 to collect the heat exchange medium from each third heat exchange medium inlet 51 and discharge it to the third heat exchange medium outlet 56.

[0102] It should be noted that in the second C example above, such as Figure 5 As shown, the flow path 5 has one third heat exchange medium outlet 56, one B2 flow path 58, two C2 flow paths 57, and four third heat exchange medium inlets 51. Each fifth branch flow path has one C2 flow path 57 and two third heat exchange medium inlets 51.

[0103] In some implementations, such as Figure 7 As shown, the present invention also provides a heat exchanger structure, which includes a heat exchanger 200 and a flow-dividing device as described above. Because the heat exchanger structure employs the aforementioned flow-dividing device, parasitic heat conduction can be reduced, effectively decreasing the heat exchange between the heat exchange medium in the set flow path 10 and the diverted flow path 3 through the plates of the flow-dividing plate structure 100, reducing ineffective heat exchange between the hot and cold heat exchange mediums, and improving the energy efficiency ratio of the air conditioning system in which the heat exchanger structure is applied.

[0104] In some embodiments, the aforementioned heat exchanger 200 can be a microchannel heat exchanger, and correspondingly, the heat exchange tubes on the heat exchanger 200 are flat tubes, and the heat exchanger structure is a microchannel heat exchanger structure.

[0105] In some implementations, such as Figure 8As shown, when the set flow path 10 includes a series flow path 4, the series flow path 4 has a second heat exchange medium inlet 41 and a second heat exchange medium outlet 47. The series flow path 4 supplies heat exchange medium to the heat exchanger 200 through the second heat exchange medium inlet 41 and discharges the inflowing heat exchange medium through the second heat exchange medium outlet 47. The set flow path 10 also includes a collector flow path 5, the collector flow path 5 has a third heat exchange medium outlet 56 and two or more third heat exchange medium inlets 51. The collector flow path 5 supplies heat exchange medium to the heat exchanger 200 through each third heat exchange medium inlet 51. The heat exchange medium 200 flows in and collects the heat exchange medium from each of the third heat exchange medium inlets 51 to the third heat exchange medium outlet 56 for discharge; and when the series flow path 4 and the collection flow path 5 are respectively set in different insulation areas 2, the aforementioned heat exchanger 200 includes a first heat exchange tube 71, a second heat exchange tube 72, a third heat exchange tube 73 and a fourth heat exchange tube 74, and the number of each of the first heat exchange tube 71, the second heat exchange tube 72, the third heat exchange tube 73, the fourth heat exchange tube 74, the third heat exchange medium inlet 51 and the series flow path 4 is N1. Each of the first heat exchange tubes 71 has a corresponding first A end 711 and second A end 712; each of the second heat exchange tubes 72 has a corresponding first B end 721 and second B end 722; each of the third heat exchange tubes 73 has a corresponding first C end 731 and second C end 732; and each of the fourth heat exchange tubes 74 has a corresponding first D end 741 and second D end 742. The first A end 711 of each of the first heat exchange tubes 71 is connected to the outlet 38 of each of the first heat exchange media, and the first B end of each of the second heat exchange tubes 72... 721 is connected to each of the second heat exchange medium inlets 41 in a one-to-one correspondence; the first C end 731 of each third heat exchange tube 73 is connected to each of the second heat exchange medium outlets 47 in a one-to-one correspondence; the first D end 741 of each fourth heat exchange tube 74 is connected to each of the third heat exchange medium inlets 51 in a one-to-one correspondence; the second A end 712 of each first heat exchange tube 71 is connected to each of the second B end 722 of each second heat exchange tube 72 in a one-to-one correspondence; the second C end 732 of each third heat exchange tube 73 is connected to each of the second D end 742 of each fourth heat exchange tube 74 in a one-to-one correspondence.

[0106] In the above example, the heat exchange medium in the series flow path 4 is the heat exchange medium after one heat exchange in the heat exchanger 200, while the heat exchange medium in the collector flow path 5 is the heat exchange medium after two heat exchanges in the heat exchanger 200. At the same time, the heat exchange medium in the branch flow path 3 is the heat exchange medium that has not undergone heat exchange in the heat exchanger 200. This results in a temperature difference between the heat exchange media in the branch flow path 3, the series flow path 4, and the collector flow path 5. By setting the branch flow path 3, the series flow path 4, and the collector flow path 5 in different heat insulation areas 2 on the flow divider plate structure 100, the present invention can reduce parasitic heat conduction between the flow paths, effectively reduce the heat exchange of the heat exchange medium in each flow path through the plate of the flow divider plate structure 100, and reduce ineffective heat exchange between hot and cold heat exchange media.

[0107] In some embodiments, the first A end 711 of each first heat exchange tube 71 is inserted into and fixed to each first heat exchange medium outlet 38 by welding. The first B end 721 of each second heat exchange tube 72 is inserted into and fixed to each second heat exchange medium inlet 41 by welding. The first C end 731 of each third heat exchange tube 73 is inserted into and fixed to each second heat exchange medium outlet 47 by welding. The first D end 741 of each fourth heat exchange tube 74 is inserted into and fixed to each third heat exchange medium inlet 51 by welding, thus realizing the assembly of the flow distribution device and the heat exchanger 200.

[0108] In some embodiments, the second A end 712 of each of the first heat exchange tubes 71 and the second B end 722 of each of the second heat exchange tubes 72 can be connected one-to-one through a series module or other means. Similarly, the second C end 732 of each of the third heat exchange tubes 73 and the second D end 742 of each of the fourth heat exchange tubes 74 can be connected one-to-one through a series module or other means.

[0109] It should be noted that in some cases, the aforementioned D flow path plate 104 can also be called a support plate, used to provide support for the heat exchanger 200.

[0110] In some embodiments, the present invention also provides an air conditioner that may include any of the above-described flow distribution devices; or include the above-described heat exchanger structures. Because the air conditioner employs the aforementioned flow distribution device or heat exchanger structure, parasitic heat conduction can be reduced, effectively decreasing the heat exchange between the heat exchange medium in the set flow path 10 and the split flow path 3 through the plate of the flow distribution plate structure 100, reducing ineffective heat exchange between the hot and cold heat exchange mediums, and improving the system's energy efficiency ratio.

[0111] For ease of understanding, the overall structure of the present invention will be described below, and its working principle will be explained.

[0112] When the heat exchange medium is a refrigerant, such as Figure 2-4 As shown, the refrigerant enters the distribution device from the first heat exchange medium inlet 31, and is distributed to a portion of the flow channels in the D-flow plate 104 to enter the heat exchanger 200 pipeline for heat exchange. After heat exchange, it returns to the distribution device from the heat exchanger 200 pipeline through another portion of the flow channels in the D-flow plate 104, and then flows out of the distribution device via the third heat exchange medium outlet 56. Because this distribution device has many symmetrical design features, for the sake of simplicity, only the symmetrical single-sided flow path will be described below. The specific distribution process is described in detail below.

[0113] like Figure 2As shown, the refrigerant enters from the first heat exchange medium inlet 31 and is divided into two paths after reaching the B1 branch channel 32: its left side connects to the upper side of the A1 flow channel 33 on one of the first branch channels, and the refrigerant flows to the lower half of the branch device; its right side connects to the lower side of the A1 flow channel 33 on another first branch channel, and the refrigerant flows to the upper half of the branch device (centrally symmetrical, only the upper half of the branch device is described). After the refrigerant flows through the A1 flow channel 33, the B1 flow channel 34, and the A1 branch channel 35, it is divided into two streams, which flow out from the B2 flow channels 36 of the two second branch channels respectively. The refrigerant in the B2 flow channel 36 flows into the C1 branch channel 37, and then is branched into the two first heat exchange medium outlets 38 in the D flow plate 104 and enters the first heat exchange tube 71 on the heat exchanger 200.

[0114] like Figure 8 As shown, after the refrigerant exchanges heat through the first heat exchange tube 71 and the second heat exchange tube 72, it flows back to the distribution device from the second heat exchange tube 72. Specifically, as... Figure 3 As shown, the refrigerant in the second heat exchange tube 72 flows sequentially through the second heat exchange medium inlet 41, the C1 flow channel 42, the B3 flow channel 43, the A2 flow channel 44, the B4 flow channel 45, the C2 flow channel 46, and the second heat exchange medium outlet 47, and then flows into the third heat exchange tube 73.

[0115] like Figure 8 As shown, the refrigerant returns to the distribution unit after heat exchange through the third heat exchange tube 73 and the fourth heat exchange tube 74. After the second heat exchange, as... Figure 4 As shown, the refrigerant from each of the fourth heat exchange tubes 74 flows into each of the third heat exchange medium inlets 51. The refrigerant from the third heat exchange medium inlets 51 flows into the C3 flow channel 52. The refrigerant from each of the C3 flow channels 52 is collected into the B1 collection channel 53. The refrigerant from each of the B1 collection channels 53 is collected and flows into the C1 collection channel 54, and then into the B5 flow channel 55, and flows out of the diversion device from the third heat exchange medium outlet 56.

[0116] Among them, the design of the flow divider integrates the series flow channels between the first and second heat exchange of the refrigerant, making the refrigerant flow path system setting more flexible.

[0117] The flow divider structure 100 of this invention has three temperature zones: a refrigerant heat exchange zone (the zone where the refrigerant has not yet flowed through the heat exchanger 200), a primary refrigerant heat exchange zone (the zone where the refrigerant has flowed through the heat exchanger 200 once), and a secondary refrigerant heat exchange zone (the zone where the refrigerant has flowed through the heat exchanger 200 twice). The flow divider path 3 is located in the refrigerant heat exchange zone, the series flow path 4 is located in the primary refrigerant heat exchange zone, and the collecting flow path 5 is located in the secondary refrigerant heat exchange zone. In the flow divider device of this invention, each plate has a heat insulation groove 11 at the boundary of the temperature zones, which can reduce heat transfer interference caused by temperature differences between the zones. This invention does not limit the number, shape, or position of the heat insulation grooves 11, and they can be set according to the layout requirements of different flow paths. For ease of explanation, in this embodiment, the shape and position of the heat insulation grooves 11 on each flow path plate are the same.

[0118] This invention provides a flow distribution device for microchannel heat exchangers. The first heat exchange medium inlet 31 of the flow distribution path 3 and the third heat exchange medium outlet 56 of the collecting flow path 5 are located on the same side of the flow distribution device, shortening the external pipe length and reducing the overall size of the heat exchanger 200. By setting multiple flow distributions, with each branch length designed symmetrically, the flow distribution device ensures the consistency of the refrigerant flow in each branch, solving the problem of uneven refrigerant distribution in one-to-many applications. This invention also features a zoned design of the flow paths based on temperature field distribution and introduces a heat insulation groove 11, effectively reducing parasitic heat conduction within the flow distribution device and minimizing ineffective heat exchange between hot and cold refrigerants. Simultaneously, the temperature zoning and heat insulation groove 11 design can alleviate stress concentration caused by different thermal expansion coefficients to a certain extent, improving the structural lifespan of the flow distribution device.

[0119] It will be readily understood by those skilled in the art that, without conflict, the advantageous technical features of the above-mentioned methods can be freely combined and superimposed.

[0120] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention. The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present invention, and these improvements and modifications should also be considered within the protection scope of the present invention.

Claims

1. A shunt device, characterized by: The system includes a flow divider structure (100), on which a flow divider path (3) is provided. The flow divider path (3) has a first heat exchange medium inlet (31) and N1 first heat exchange medium outlets (38), where N1 is a positive integer greater than or equal to 2. The flow divider path (3) is used to divide the heat exchange medium at the first heat exchange medium inlet (31) into N1 streams and lead them out one by one from the N1 first heat exchange medium outlets (38). The flow divider structure (100) is also provided with a heat insulation structure (1), which is used to divide the flow divider structure (100) into two or more different heat insulation areas (2). The flow divider structure (100) is also provided with a set flow path (10), which is used to allow the heat exchange medium of the heat exchanger (200) to flow in and to discharge the flowing heat exchange medium; wherein the set flow path (10) and the flow divider (3) are respectively set in different heat insulation areas (2).

2. The diversion device according to claim 1, characterized in that: The set flow path (10) includes a series flow path (4), which has a second heat exchange medium inlet (41) and a second heat exchange medium outlet (47). The series flow path (4) supplies heat exchange medium to the heat exchanger (200) through the second heat exchange medium inlet (41) and discharges the heat exchange medium through the second heat exchange medium outlet (47).

3. The diversion device according to claim 1 or 2, characterized in that: The set flow path (10) includes a collection flow path (5), which has a third heat exchange medium outlet (56) and two or more third heat exchange medium inlets (51). The collection flow path (5) supplies heat exchange medium to the heat exchanger (200) through each of the third heat exchange medium inlets (51) and collects the heat exchange medium from each of the third heat exchange medium inlets (51) and discharges it through the third heat exchange medium outlet (56).

4. The diversion device according to claim 3, characterized in that: When the set flow path (10) includes a series flow path (4), the series flow path (4) has a second heat exchange medium inlet (41) and a second heat exchange medium outlet (47), the series flow path (4) supplies heat exchange medium to the heat exchanger (200) through the second heat exchange medium inlet (41) and discharges the inflowing heat exchange medium through the second heat exchange medium outlet (47), The series flow path (4) and the collection flow path (5) are respectively located in different heat insulation areas (2).

5. The diversion device according to any one of claims 1-2 and 4, characterized in that: The heat insulation structure (1) includes a heat insulation groove (11), and the heat insulation structure (1) divides two or more different heat insulation areas (2) on the diversion plate structure (100) through the heat insulation groove (11).

6. The diversion device according to claim 5, characterized in that: The flow divider structure (100) includes two or more flow path plates (1a) stacked sequentially. The heat insulation groove (11) passes through each flow path plate (1a) sequentially to divide each flow path plate (1a) into two or more sub-heat insulation regions (21). The number of sub-heat insulation regions (21) on each flow path plate (1a) is equal and corresponds one-to-one. The corresponding sub-heat insulation regions (21) on each flow path plate (1a) cooperate to form a single heat insulation region (2).

7. The diversion device according to claim 6, characterized in that: When the set flow path (10) includes a series flow path (4), the series flow path (4) has a second heat exchange medium inlet (41) and a second heat exchange medium outlet (47), the series flow path (4) supplies heat exchange medium to the heat exchanger (200) through the second heat exchange medium inlet (41) and discharges the heat exchange medium through the second heat exchange medium outlet (47); and the set flow path (10) includes a collection flow path (5), the collection flow path (5) has a third heat exchange medium outlet (56) and two or more third heat exchange medium inlets (51), the collection flow path (5) supplies heat exchange medium to the heat exchanger (200) through each of the third heat exchange medium inlets (51) and collects the heat exchange medium from each of the third heat exchange medium inlets (51) to the third heat exchange medium outlet (56) for discharge; and when the series flow path (4) and the collection flow path (5) are respectively set in different insulation areas (2), Each of the branch flow path (3), the series flow path (4) and the collection flow path (5) has a partial flow path segment in the corresponding sub-insulation area (21) on each flow path plate (1a).

8. The diversion device according to claim 7, characterized in that: The flow path plates (1a) located at both ends of the stacking direction in each of the aforementioned flow path plates (1a) are flow path plate A (101) and flow path plate D (104), respectively; wherein, The first heat exchange medium inlet (31) and the third heat exchange medium outlet (56) are both disposed on the A flow path plate (101), and the second heat exchange medium inlet (41), the second heat exchange medium outlet (47), each of the first heat exchange medium outlets (38) and each of the third heat exchange medium inlets (51) are all disposed on the D flow path plate (104).

9. The diversion device according to claim 8, characterized in that: A flow path board (101) and D flow path board (104) are further stacked with a B flow path board (102) and a C flow path board (103), and the B flow path board (102) is located between the A flow path board (101) and the C flow path board (103).

10. The diversion device according to claim 9, characterized in that: The diversion flow path (3) includes a B1 diversion channel (32) and two first branch flow paths connected in sequence. The B1 diversion channel (32) is connected to the first heat exchange medium inlet (31). The B1 diversion channel (32) is used to divert the heat exchange medium from the first heat exchange medium inlet (31) into two streams that flow out from the two first branch flow paths respectively. Each first branch flow path includes an A1 through flow path (33), a B1 through flow path (34), an A1 diversion channel (35) and two second branch flow paths connected in sequence. The first branch flow path is connected to the B1 diversion channel (32) through the A1 through flow path (33). The A1 branch flow channel (35) is used to split the heat exchange medium of the B1 flow channel (34) into two streams that flow out from the two second branch flow paths respectively; each second branch flow path includes a B2 flow channel (36), a C1 branch flow channel (37) and two first heat exchange medium outlets (38) connected in sequence. The second branch flow path is connected to the A1 branch flow channel (35) through the B2 flow channel (36). The C1 branch flow channel (37) is used to split the heat exchange medium of the B2 flow channel (36) into two streams that flow out from the two first heat exchange medium outlets (38) respectively. The A1 flow channel (33) and the A1 branch flow channel (35) are both disposed on the A flow path plate (101), the B1 branch flow channel (32), the B1 flow channel (34) and the B2 flow channel (36) are all disposed on the B flow path plate (102), and the C1 branch flow channel (37) is disposed on the C flow path plate (103).

11. The diversion device according to claim 10, characterized in that: The A flow path board (101) has a first A side (101a) and a second A side (101b) opposite to each other, the first A side (101a) being opposite to the B flow path board (102); wherein, Both the A1 flow channel (33) and the A1 branch flow channel (35) are blind holes provided on the first A side (101a); Alternatively, both the A1 flow channel (33) and the A1 branch flow channel (35) extend from the first A side (101a) to the second A side (101b). The branch plate structure (100) further includes a baffle (6) stacked on the second A side (101b). The heat insulation groove (11) extends through the baffle (6). The baffle (6) blocks the openings of both the A1 flow channel (33) and the A1 branch flow channel (35) on the second A side (101b). The baffle (6) is also provided with a first through hole (61) and a second through hole (62). The first through hole (61) is connected to the first heat exchange medium inlet (31), and the second through hole (62) is connected to the third heat exchange medium outlet (56).

12. The diversion device according to any one of claims 9-11, characterized in that: The series flow path (4) includes C1 flow channel (42), B3 flow channel (43), A2 flow channel (44), B4 flow channel (45) and C2 flow channel (46) connected in sequence; the second heat exchange medium inlet (41) is connected in series on the side of the C1 flow channel (42) away from the B3 flow channel (43), and the second heat exchange medium outlet (47) is connected in series on the side of the C2 flow channel (46) away from the B4 flow channel (45); The A2 flow channel (44) is disposed on the A flow path plate (101), the B3 flow channel (43) and the B4 flow channel (45) are disposed on the B flow path plate (102), and the C1 flow channel (42) and the C2 flow channel (46) are disposed on the C flow path plate (103).

13. The diversion device according to claim 12, characterized in that: The A flow path board (101) has a first A side (101a) and a second A side (101b) opposite to each other, the first A side (101a) being opposite to the B flow path board (102); wherein, The A2 flow channel (44) is a blind hole provided on the first A side (101a); Alternatively, the A2 flow channel (44) extends from the first A side (101a) to the second A side (101b), and the flow divider structure (100) further includes a baffle (6) stacked on the second A side (101b). The heat insulation groove (11) extends through the baffle (6), and the baffle (6) blocks the opening of the A2 flow channel (44) on the second A side (101b). The baffle (6) is also provided with a first through hole (61) and a second through hole (62). The first through hole (61) is connected to the first heat exchange medium inlet (31), and the second through hole (62) is connected to the third heat exchange medium outlet (56).

14. The diversion device according to any one of claims 9-11 and 13, characterized in that: The flow path (5) includes a B5 through-flow channel (55), a C1 collecting channel (54), and two third branch channels connected in sequence. The side of the B5 through-flow channel (55) away from the C1 collecting channel (54) is connected to the third heat exchange medium outlet (56). The C1 collecting channel (54) is used to collect the heat exchange medium from the two third branch channels into one stream and introduce it into the B5 through-flow channel (55). Each of the third branch channels includes a B1 collecting channel connected in sequence. The third branch flow path (53) and two fourth branch flow paths are connected to the B1 collection flow path (54). The third branch flow path collects the heat exchange medium of the two fourth branch flow paths into one stream through the B1 collection flow path (53) and introduces it into the C1 collection flow path (54). The fourth branch flow path includes a C3 flow path (52) and a single third heat exchange medium inlet (51) corresponding to and connected to the C3 flow path (52). The fourth branch flow path is connected to the B1 collection flow path (53) through the C3 flow path (52). The B1 flow channel (53) and the B5 flow channel (55) are disposed on the B flow path plate (102), and the C1 flow channel (54) and the C3 flow channel (52) are disposed on the C flow path plate (103).

15. The diversion device according to any one of claims 9-11 and 13, characterized in that: The flow path (5) includes a B2 flow path (58) and two fifth branch flow paths connected in sequence. The side of the B2 flow path (58) away from the fifth branch flow path is connected to the third heat exchange medium outlet (56). The B2 flow path (58) is used to collect the heat exchange medium from the two fifth branch flow paths into one stream and introduce it into the third heat exchange medium outlet (56). Each of the fifth branch flow paths includes a C2 collection channel (57) and two third heat exchange medium inlets (51). The fifth branch flow path is connected to the B2 collection channel (58) through the C2 collection channel (57). The C2 collection channel (57) is connected to both third heat exchange medium inlets (51). The C2 collection channel (57) is used to collect the heat exchange medium from the two third heat exchange medium inlets (51) into a stream and introduce it into the B2 collection channel (58). The B2 flow channel (58) is disposed on the B flow path plate (102), and the C2 flow channel (57) is disposed on the C flow path plate (103).

16. A heat exchanger structure, characterized in that: It includes a heat exchanger (200) and a flow divider according to any one of claims 1-15.

17. The heat exchanger structure according to claim 16, characterized in that: When the set flow path (10) includes a series flow path (4), the series flow path (4) has a second heat exchange medium inlet (41) and a second heat exchange medium outlet (47), the series flow path (4) supplies heat exchange medium to the heat exchanger (200) through the second heat exchange medium inlet (41) and discharges the heat exchange medium through the second heat exchange medium outlet (47); and the set flow path (10) includes a collection flow path (5), the collection flow path (5) has a third heat exchange medium outlet (56) and two or more third heat exchange medium inlets (51), the collection flow path (5) supplies heat exchange medium to the heat exchanger (200) through each of the third heat exchange medium inlets (51) and collects the heat exchange medium from each of the third heat exchange medium inlets (51) to the third heat exchange medium outlet (56) for discharge; and when the series flow path (4) and the collection flow path (5) are respectively set in different insulation areas (2), The heat exchanger (200) includes a first heat exchange tube (71), a second heat exchange tube (72), a third heat exchange tube (73), and a fourth heat exchange tube (74). The number of each of the first heat exchange tube (71), the second heat exchange tube (72), the third heat exchange tube (73), the fourth heat exchange tube (74), the third heat exchange medium inlet (51), and the series flow path (4) is N1. Each of the first heat exchange tubes (71) has a corresponding first A end (711) and a second A end (712), each of the second heat exchange tubes (72) has a corresponding first B end (721) and a second B end (722), each of the third heat exchange tubes (73) has a corresponding first C end (731) and a second C end (732), and each of the fourth heat exchange tubes (74) has a corresponding first D end (741) and a second D end (742). 2); The first A end (711) of each of the first heat exchange tubes (71) is connected to the outlet (38) of each of the first heat exchange mediums in a one-to-one correspondence; the first B end (721) of each of the second heat exchange tubes (72) is connected to the inlet (41) of each of the second heat exchange mediums in a one-to-one correspondence; the first C end (731) of each of the third heat exchange tubes (73) is connected to the outlet (47) of each of the second heat exchange mediums in a one-to-one correspondence; the first D end (741) of each of the fourth heat exchange tubes (74) is connected to the inlet (51) of each of the third heat exchange mediums in a one-to-one correspondence; the second A end (712) of each of the first heat exchange tubes (71) is connected to the second B end (722) of each of the second heat exchange tubes (72) in a one-to-one correspondence; the second C end (732) of each of the third heat exchange tubes (73) is connected to the second D end (742) of each of the fourth heat exchange tubes (74) in a one-to-one correspondence.

18. An air conditioner, characterized in that: It includes the flow splitting device according to any one of claims 1-15; or it includes the heat exchanger structure according to claim 16 or 17.

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