Heat exchanger

Abstract

The application discloses a heat exchanger, which comprises a first collecting component, a distribution pipe and a flow guide structure, wherein the flow guide structure is connected with the first collecting component, the flow guide structure is connected with the distribution pipe, the first collecting component has a first collecting cavity, at least part of the distribution pipe is located in the first collecting cavity, and a cavity of the flow guide structure is communicated with a cavity of the distribution pipe; the distribution pipe has a plurality of distribution holes which are communicated with the first collecting cavity; and the flow guide structure comprises a plurality of outlet cavities which are respectively communicated with the cavity of the distribution pipe. The flow guide structure of the application is provided with a plurality of outlet cavities which are communicated with the distribution pipe, the uniformity of the fluid flowing into the distribution cavity is improved, and thus the uniformity of the fluid sprayed into the first collecting cavity is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of heat exchange, in particular to a heat exchanger. BACKGROUND

[0002] The heat exchanger, also known as heat exchanger, is widely used in heat exchange system. The heat exchanger can be used for heat exchange between heat exchange medium and external air, and can also be used for heat exchange between two heat exchange media. Due to the difference in flow rate, the fluid in the flow collecting cavity is prone to uneven distribution, which affects the heat exchange effect of the heat exchanger to some extent. In order to solve the above technical problems, the related technology adopts the distribution pipe with multiple distribution holes arranged in the flow collecting pipe to improve the uniformity of the fluid flowing into the flow collecting cavity. However, when the flow rate of the fluid changes, especially when the flow rate of the fluid decreases, the fluid will be mixed unevenly due to the inertia effect, especially when the fluid is a multiphase fluid, the uneven mixing phenomenon is particularly obvious, which will lead to uneven distribution of the fluid flowing into the flow collecting pipe. SUMMARY

[0003] In order to solve the problems in the related art, the technical scheme adopted by the present application is as follows: a heat exchanger, comprising a first flow collecting component, a distribution pipe and a flow guiding structure, the flow guiding structure is connected with the first flow collecting component, and the flow guiding structure is connected with the distribution pipe, the first flow collecting component has a first flow collecting cavity, at least part of the distribution pipe is located in the first flow collecting cavity, the chamber of the flow guiding structure is communicated with the chamber of the distribution pipe;

[0004] The distribution pipe has a plurality of distribution holes, and the distribution holes are communicated with the first flow collecting cavity;

[0005] The flow guiding structure comprises a plurality of outlet chambers, and the plurality of outlet chambers are respectively communicated with the chambers of the distribution pipes.

[0006] The flow guiding structure comprises a plurality of outlet chambers, and the plurality of outlet chambers are respectively communicated with the chambers of the distribution pipes.

[0007] The flow guiding structure of the present application is provided with a plurality of outlet chambers communicated with the distribution pipe, which improves the uniformity of the fluid flowing into the distribution cavity, thereby improving the uniformity of the fluid sprayed into the first flow collecting cavity. BRIEF DESCRIPTION OF DRAWINGS

[0008] Figure 1 is a three-dimensional structure schematic diagram of the heat exchanger in an embodiment of the present application;

[0009] Figure 2 is Figure 1 is an exploded structure three-dimensional schematic diagram of the heat exchanger shown in the figure;

[0010] Figure 3 is a three-dimensional structure schematic diagram of the flow guiding structure and the distribution pipe in an embodiment of the present application;

[0011] Figure 4 is Figure 3 is a schematic view of a part of the flow guide structure and the enlarged structure of the distribution pipe;

[0012] Figure 5 is Figure 3 is a schematic view of another part of the flow guide structure and the enlarged structure of the distribution pipe;

[0013] Figure 6 is a schematic view of a cross-sectional structure of the distribution pipe in an embodiment of the present application;

[0014] Figure 7 is a schematic view of a cross-sectional structure of the heat exchanger in another embodiment of the present application;

[0015] Figure 8 Figure 7 is a schematic view of a part of the heat exchanger in another embodiment of the present application;

[0016] Figure 9 is Figure 7 is a schematic view of an exploded structure of the part of the heat exchanger;

[0017] Figure 10 is Figure 7 is a schematic view of a cross-sectional structure of the part in another embodiment of the present application;

[0018] Figure 11 is Figure 10 is a schematic view of an enlarged structure of the part of the circle A;

[0019] Figure 12 is a schematic view of a cross-sectional structure of the part of the heat exchanger in another embodiment of the present application;

[0020] Figure 13 is Figure 12 is a schematic view of an enlarged structure of the part in another embodiment of the present application;

[0021] Figure 14 is Figure 12 is a schematic view of an exploded structure of the part in another embodiment of the present application;

[0022] Figure 15 Figure 14 is a schematic view of an enlarged structure of the part of the circle B;

[0023] Figure 16 is a schematic view of an exploded structure of the inlet part in some embodiments of the present application;

[0024] Figure 17 is a schematic view of a cross-sectional structure of the inlet part in some embodiments of the present application. DETAILED DESCRIPTION

[0025] The exemplary embodiments will be described in detail herein with reference to the attached drawings. The description of the exemplary embodiments is intended to apply to any exemplary embodiment, unless specified otherwise. It is understood that features of the various exemplary embodiments can be combined, adjusted, and / or interchanged, unless otherwise specified.

[0026] The terminology used in this application, and by those of ordinary skill in the art, is for the purpose of describing particular embodiments only and is not intended to be limiting - unless otherwise explicitly defined by the patentee. The descriptions and illustrations herein are by way of examples only and expressly not by way of limitation. Unless otherwise defined, all technical and scientific terms and any acronyms used herein have the same meaning as commonly understood by one of ordinary skill in the art in the field of the application.

[0027] It is to be understood that the phraseology or terminology herein is for the purpose of description and not of limitation. The use of terms, for example, "first", "second", "a", "the", "said", "at least one", "plurality", "another", and the like, is merely to distinguish one feature from another and is not intended to limit the scope of the application. Similarly, the use of the term "or" is intended to mean an inclusive "or" rather than an exclusive "or". That is, unless specified otherwise, or as is clear by the context of the present disclosure, the use of "or" means an inclusive "or", i.e., the use of "or" allows a selection of one or more of the stated options. As used herein, "another" means one or more, unless specified otherwise.

[0028] The heat exchanger of the exemplary embodiments of the present application will be described in detail below with reference to the drawings. The features of the following embodiments and implementation can be supplemented or combined with each other, without conflict.

[0029] Figures 1 to 16 The heat exchanger and heat exchanger components or assemblies in some embodiments of the present application are shown.

[0030] Figure 1 and Figure 2The heat exchanger in some embodiments of the present application is shown, which comprises a main body part 1, a first flow collecting part 2 and a second flow collecting part 6, the main body part 1 is connected with the first flow collecting part 2, and the main body part 1 is connected with the second flow collecting part 6, and part or all of the main body part 1 is located between the first flow collecting part 2 and the second flow collecting part 6. The chamber of the main body part 1 is communicated with the chamber of the first flow collecting part 2, and the chamber of the main body part 1 is communicated with the chamber of the second flow collecting part 6. The main body part 1 mainly plays a heat exchange role. The first flow collecting part 2 and the second flow collecting part 6 play the roles of collecting and temporarily storing fluid. Optionally, the first flow collecting part 2 and the second flow collecting part 6 are arranged in parallel. Optionally, the main body part 1 and the first flow collecting part 2 are brazed, and the main body part 1 and the second flow collecting part 6 are brazed.

[0031] In an embodiment of the present application, as shown in Figure 1 and Figure 2 , the main body part 1 comprises a plurality of heat exchange pipes 11. One side of the heat exchange pipe 11 in the length direction is connected with the first flow collecting part 2, and the other side of the heat exchange pipe 11 in the length direction is connected with the second flow collecting part 6. The chamber of the heat exchange pipe 11 is communicated with the chamber of the first flow collecting part 2, and is communicated with the chamber of the second flow collecting part 6. The plurality of heat exchange pipes 11 are arranged along the length direction of the first flow collecting part 2. Optionally, the plurality of heat exchange pipes 11 are all flat tubes, and the chamber of the heat exchange pipe 11 is a micro-channel chamber, and the corresponding heat exchanger is a micro-channel heat exchanger.

[0032] Continuing to refer to Figure 1 and Figure 2 , the main body part 1 further comprises a side plate 12, which is located on one side of the main body part 1. The side plate 12 generally does not have a chamber, and has relatively large strength, which protects the heat exchange pipe 11. One side of the side plate 12 in the length direction is connected with the first flow collecting part 2, and the other side of the side plate 12 in the length direction is connected with the second flow collecting part 6. Optionally, the main body part 1 comprises two side plates 12, which are located on different sides of the main body part 1 in the width direction. The two side plates 12 and the first flow collecting part 2 and the second flow collecting part 6 jointly form a frame, and the plurality of heat exchange pipes 11 are located in the frame. In some embodiments, the main body part 1 comprises fins (not shown) for strengthening heat exchange. The fins are located between every two adjacent heat exchange pipes and are connected with the heat exchange pipes. According to different heat exchange requirements, fins can be arranged between part of the heat exchange pipes, or fins are arranged between all the heat exchange pipes.

[0033] As shown in Figures 2 to 6As shown, the heat exchanger also includes a distribution pipe 3 and a flow guiding structure 4, with the distribution pipe 3 connected to the flow guiding structure 4. The first flow collecting component 2 has a first flow collecting cavity 20. At least a portion of the distribution pipe 3 is located in the first flow collecting cavity 20, and at least a portion of the flow guiding structure 4 is located in the first flow collecting cavity 20. The flow guiding structure 4 is connected to the first flow collecting component 2. The chamber of the flow guiding structure 4 communicates with the chamber of the distribution pipe 3. When the heat exchanger is operating, the fluid flows into the distribution pipe 3 through the chamber of the flow guiding structure 4, and is distributed to the first flow collecting cavity 20 via the distribution pipe 3, improving the uniformity of fluid distribution in the first flow collecting cavity 20.

[0034] Specifically, the distribution pipe 3 extends from one side of the first collection chamber 20 along its length to the other side. The distribution pipe 3 has a plurality of distribution holes 31 for injecting fluid from the chamber of the distribution pipe 3 into the first collection chamber 20, thereby uniformly distributing the fluid. The plurality of distribution holes 31 are located on the circumferential wall of the distribution pipe 3, that is, a plurality of distribution holes 31 are provided along the circumferential wall of the distribution pipe 3, and the distribution holes 31 connect the chamber of the first collection chamber 20 and the chamber of the distribution pipe 3.

[0035] Optionally, the distribution pipe 3 has multiple distribution holes 31. These multiple distribution holes 31 are evenly spaced along the length of the distribution pipe 3, extending from one side to the other. During heat exchanger operation, fluid is injected or flows into the first collection chamber 20 from the distribution holes 31, improving the uniformity of the fluid in the first collection chamber 20 and thus increasing the heat exchange efficiency of the heat exchanger. Understandably, the sizes of the distribution holes 31 can be equal or unequal. Depending on the size of the heat exchanger, the spacing between every two distribution holes 31 can be adjusted.

[0036] like Figures 2 to 6 As shown, the distribution pipe 3 has multiple inlet holes for allowing fluid to enter the chamber of the distribution pipe 3 through these inlet holes, thereby improving the uniformity of the fluid within the chamber of the distribution pipe 3. Optionally, the inlet holes are located on and penetrate the circumferential wall of the distribution pipe 3. Optionally, the inlet holes are evenly spaced along the length of the distribution pipe 3, extending from one side to the other. The spacing between every two inlet holes can be adjusted depending on the size of the heat exchanger. Understandably, the distribution holes 31 are staggered from the inlet holes. The distribution holes 31 and the inlet holes have different functions; the distribution holes 31 are used to spray fluid into the first collection chamber 20, while the inlet holes are used to allow fluid to be sprayed into or flow into the chamber of the distribution pipe 3.

[0037] The heat exchanger also includes an inlet component 5. When the heat exchanger is working, the fluid flows sequentially into the chamber of the flow guiding structure 4, the chamber of the distribution pipe 3, the chamber of the first collection chamber 20, and the chambers of several heat exchange tubes 11 through the chamber of the inlet component 5.

[0038] Reference Figure 3 and Figure 6The flow guide structure 4 comprises a plurality of outlet chambers, each of which is in communication with the chamber of the distribution pipe 3. During the operation of the heat exchanger, the fluid enters the chamber of the distribution pipe 3 from different positions of the distribution pipe 3 at the same time, thereby improving the uniformity of the fluid flowing into the chamber of the distribution pipe 3. It can be understood that the plurality of outlet chambers can be in direct communication or indirect communication with the chamber of the distribution pipe 3. For example, a connecting pipe is arranged, one side of the connecting pipe in the length direction is connected with the wall of the outlet chamber, and the other side of the connecting pipe in the length direction is connected with the distribution pipe 3, so that the chamber of the outlet chamber and the chamber of the distribution pipe 3 are in communication through the connecting pipe; or the distribution pipe 3 is provided with a plurality of inlet holes, the plurality of inlet holes are arranged staggered with the distribution holes 31, the plurality of outlet chambers correspond to the plurality of inlet holes one by one, the wall of the outlet chamber is connected with the distribution pipe 3, the port or outlet of the outlet chamber is in communication with the inlet hole corresponding to the outlet chamber, and the plurality of outlet chambers are in communication with the chamber of the distribution pipe 3 through the plurality of inlet holes; or the outlet chamber is located in the distribution chamber of the distribution pipe 3, and the outlet chamber is in direct communication with the chamber of the distribution pipe 3; or the ports of the plurality of outlet chambers are located in the inlet holes, and the outlet chambers are in communication with the chamber of the distribution pipe 3 through part of the inlet holes.

[0039] In an embodiment of the present application, the flow guide structure 4 comprises a plurality of flow guide pipes, each of which comprises an outlet portion and an inlet portion, the outlet portion and the inlet portion are respectively located on two sides of the flow guide pipe, one side of the two sides is close to or located at one open end of the flow guide pipe, and the other side of the two sides is close to or located at the other open end of the flow guide pipe. During the operation of the heat exchanger, the fluid enters the inlet portion of the flow guide pipe, passes through the pipe cavity of the flow guide pipe, and flows out from the outlet portion of the flow guide pipe. The outlet portion is connected with and in communication with the distribution pipe 3, the inlet portion is connected with and in communication with the inlet component 5 of the heat exchanger, and the chamber or inlet of the inlet portion is in communication with the chamber of the inlet component 5, so that the chamber of the inlet component 5 is in communication with the chamber of the flow guide pipe, thereby enabling the fluid to flow into or be injected into the chamber of the distribution pipe 3 from the pipe cavity of the flow guide pipe. Optionally, the flow guide pipe is in the shape of a circular tube. Optionally, the flow guide pipe is made of aluminum alloy.

[0040] In some embodiments, the distribution pipe 3 is provided with a plurality of inlet holes, and the plurality of inlet holes are arranged staggered with the plurality of distribution holes 31. At least part of each of the plurality of outlet portions is located in the inlet hole. Each outlet portion has an outlet, which is located in the inlet hole or the chamber of the distribution pipe 3, so that the outlets of the plurality of outlet portions are all in communication with the chamber of the distribution pipe 3, thereby enabling the fluid to be injected or flow into the chamber of the distribution pipe 3 from the plurality of outlets, and improving the uniformity of the fluid in the chamber of the distribution pipe 3. The plurality of outlet portions correspond to the plurality of inlet holes, and the plurality of outlets correspond to the plurality of inlet holes.

[0041] Optionally, as shown in FIG. 1, the plurality of distribution holes 31 are arranged on the distribution pipe 3 in the form of a plurality of rows, and the plurality of rows are arranged in the form of a plurality of circles. The plurality of distribution holes 31 are arranged in the form of a plurality of rows in the same direction, and the plurality of rows are arranged in the form of a plurality of circles in the same direction. The plurality of distribution holes 31 are arranged in the form of a plurality of rows in the same direction, and the plurality of rows are arranged in the form of a plurality of circles in the same direction. Figure 6As shown, the plurality of inlet holes are evenly spaced along the length direction of the distribution pipe 3 and extend from one end to the other end of the length direction of the distribution pipe 3. Optionally, the plurality of distribution holes 31 include a plurality of distribution holes 31 which are evenly spaced along the length direction of the distribution pipe 3 and extend from one end to the other end of the length direction of the distribution pipe 3. Optionally, the plurality of inlet holes are arranged in a row along the axial direction of the distribution pipe 3. The plurality of distribution holes 31 are arranged in a row along the axial direction of the distribution pipe 3. The plurality of distribution holes 31 are located on one side of the radial direction of the distribution pipe 3, and the plurality of inlet holes are located on the other side of the radial direction of the distribution pipe 3.

[0042] Figures 1 to 6 A heat exchanger in an embodiment of the present application is shown. As shown in the figure, Figures 3 to 5 As shown, the flow guide structure 4 includes a first flow guide pipe 41, a second flow guide pipe 42, a third flow guide pipe 43, a fourth flow guide pipe 44, a fifth flow guide pipe 45, and a sixth flow guide pipe 46. Correspondingly, the distribution pipe 3 has six inlet holes, which are a first inlet hole 32, a second inlet hole 33, a third inlet hole 34, a fourth inlet hole 35, a fifth inlet hole 36, and a sixth inlet hole 37. Optionally, the first flow guide pipe 41, the second flow guide pipe 42, the third flow guide pipe 43, the fourth flow guide pipe 44, the fifth flow guide pipe 45, and the sixth flow guide pipe 46 are all circular tubes. The first flow guide pipe 41, the second flow guide pipe 42, the third flow guide pipe 43, the fourth flow guide pipe 44, the fifth flow guide pipe 45, and the sixth flow guide pipe 46 are all open tubes. When the heat exchanger is working, along the flow direction, one side of the first flow guide pipe 41 is connected and communicated with the inlet component 5, the other side of the first flow guide pipe 41 is connected and communicated with the distribution pipe 3, and the port of the other side of the first flow guide pipe 41 is located in the first inlet hole 32 or the cavity of the distribution pipe 3; similarly, the connection modes of the second flow guide pipe 42, the third flow guide pipe 43, the fourth flow guide pipe 44, the fifth flow guide pipe 45, and the sixth flow guide pipe 46 with the inlet component 5 are the same as that of the first flow guide pipe 41 with the inlet component 5, and the connection modes of the second flow guide pipe 42, the third flow guide pipe 43, the fourth flow guide pipe 44, the fifth flow guide pipe 45, and the sixth flow guide pipe 46 with the distribution pipe 3 are the same as that of the first flow guide pipe 41 with the distribution pipe 3, so they will not be described one by one.

[0043] The first flow guide pipe 41, the second flow guide pipe 42, the third flow guide pipe 43, the fourth flow guide pipe 44, the fifth flow guide pipe 45, and the sixth flow guide pipe 46 all have parts located in the first collecting cavity 20, and all have parts located between the first collecting component 2 and the inlet component 5. As shown, Figure 2It can be seen that the lengths of the first flow guide pipe 41, the second flow guide pipe 42, the third flow guide pipe 43, the fourth flow guide pipe 44, the fifth flow guide pipe 45 and the sixth flow guide pipe 46 located in the first collecting cavity 20 increase in turn, and the lengths of the first flow guide pipe 41, the second flow guide pipe 42, the third flow guide pipe 43, the fourth flow guide pipe 44, the fifth flow guide pipe 45 and the sixth flow guide pipe 46 located between the first collecting component 2 and the inlet component 5 decrease in turn. Thus, the lengths of the first flow guide pipe 41, the second flow guide pipe 42, the third flow guide pipe 43, the fourth flow guide pipe 44, the fifth flow guide pipe 45 and the sixth flow guide pipe 46 are substantially equal. The substantially equal means that the length difference between the above six flow guide pipes is within ±10%. When the heat exchanger works, the flow rates of the fluids in the chambers located at the outlet portions of each flow guide pipe are kept consistent, and the uniformity of the fluids flowing into the chamber of the distribution pipe 3 is improved.

[0044] As shown in Figure 2 The first collecting component 2 includes the first collecting pipe 21 and the first end cover 22. The first collecting pipe 21 has the first port 210 located at one end in the length direction of the first collecting pipe 21, and the first end cover 22 seals the first port 210. The circumferential wall surface of the first end cover 22 is connected with the circumferential inner wall surface of the first port 210. Optionally, the first end cover 22 is disc-shaped. The first end cover 22 is axially provided with six through holes arranged in a staggered manner. The above six flow guide pipes correspond to the six through holes, and each flow guide pipe passes through each through hole, so that the six flow guide pipes are respectively located in the first collecting cavity 20 and partially located between the first end cover 22 and the inlet component 5. It can be understood that the outer wall surface of each flow guide pipe is sealingly connected with the circumferential inner wall surface of each through hole.

[0045] Figures 7 to 11 The heat exchanger in the two embodiments of the present application is shown. The flow guide structure 4 in the heat exchanger includes three flow guide pipes, i.e., the first flow guide pipe 41, the second flow guide pipe 42 and the third flow guide pipe 43, and the corresponding distribution pipe 3 has three inlet holes, i.e., the first inlet hole 32, the second inlet hole 33 and the third inlet hole 34. Optionally, the three flow guide pipes are all open pipes with two open ends. Optionally, along the length direction of the distribution pipe 3, the second inlet hole 33 is located between the first inlet hole 32 and the third inlet hole 34. The first inlet hole 32 is located at one side in the length direction of the distribution pipe 3, the third inlet hole 34 is located at the other side in the length direction of the distribution pipe 3, and the first inlet hole 32 is closer to the first end cover 22 of the first collecting component 2 than the third inlet hole 34.

[0046] The first flow guide pipe 41 includes the first pipe portion 413 and the second pipe portion 414, the second flow guide pipe 42 includes the third pipe portion 423 and the fourth pipe portion 424, and the third flow guide pipe 43 includes the fifth pipe portion 433 and the sixth pipe portion 434.

[0047] Figure 9The first current collecting component 2 in the second embodiment of the application is shown, and the structure of the first current collecting component 2 is referred to the structure of the first current collecting component 2 in the first embodiment of the application. The difference is that the first end cover 22 has three through holes arranged staggeredly, which are the first through hole 220, the second through hole 221 and the third through hole 222 respectively.

[0048] The first current collecting component 2 includes the first current collecting pipe 21 and the first end cover 22, and the first current collecting pipe 21 has the first current collecting cavity 20. The first pipe portion 413, the third pipe portion 423 and the fifth pipe portion 433 are located in the first current collecting cavity 20. At least part of the second pipe portion 414 is located between the inlet component 5 and the first end cover 22, at least part of the fourth pipe portion 424 is located between the inlet component 5 and the first end cover 22, and at least part of the sixth pipe portion 434 is located between the inlet component 5 and the first end cover 22. Optionally, the first pipe portion 413, the third pipe portion 423 and the fifth pipe portion 433 are arranged parallel to each other.

[0049] The second pipe portion 414 is arranged through the first through hole 220 on one side and connected and communicated with the first pipe portion 413, and connected with the inlet component 5 on the other side and communicated with the cavity of the inlet component 5; the fourth pipe portion 424 is arranged through the second through hole 221 on one side and connected and communicated with the third pipe portion 423, and connected with the inlet component 5 on the other side and communicated with the cavity of the inlet component 5; the sixth pipe portion 434 is arranged through the third through hole 222 on one side and connected and communicated with the fifth pipe portion 433, and connected with the inlet component 5 on the other side and communicated with the cavity of the inlet component 5.

[0050] The length of the first pipe portion 413 is less than the length of the third pipe portion 423, the length of the third pipe portion 423 is less than the length of the fifth pipe portion 433, the length of the second pipe portion 414 is greater than the length of the fourth pipe portion 424, and the length of the fourth pipe portion 424 is greater than the length of the sixth pipe portion 434.

[0051] The second pipe portion 414 includes the first bending portion 416, the fourth pipe portion 424 includes the second bending portion 426, and the sixth pipe portion 434 includes the third bending portion 436. The length of the first bending portion 416 is greater than the length of the second bending portion 426, and the length of the second bending portion 426 is greater than the length of the third bending portion 436.

[0052] Optionally, the length of the first flow guide pipe 41 is equal to or approximately equal to the length of the second flow guide pipe 42, and the length of the second flow guide pipe 42 is equal to or approximately equal to the length of the third flow guide pipe 43. Approximately equal means that the length difference is within ±10%.

[0053] Optionally, the first bending portion 416 is in one or more of the following shapes: S-shaped bend, O-shaped bend, square bend, and elongated bend; the second bending portion 426 is in one or more of the following shapes: S-shaped bend, O-shaped bend, square bend, and elongated bend; and the third bending portion 436 is in one or more of the following shapes: S-shaped bend, O-shaped bend, square bend, and elongated bend.

[0054] The first pipe section 413 includes a first outlet section 411, the third pipe section 423 includes a second outlet section 421, and the fifth pipe section 433 includes a third outlet section 431. The first outlet section 411 is located on one side of the length direction of the first pipe section 413, and the other side of the length direction of the first pipe section 413 is connected and communicates with the second pipe section 414. The second outlet section 421 is located on one side of the length direction of the third pipe section 423, and the other side of the length direction of the third pipe section 423 is connected and communicates with the fourth pipe section 424. The third outlet section 431 is located on one side of the length direction of the fifth pipe section 433, and the other side of the length direction of the fifth pipe section 433 is connected and communicates with the sixth pipe section 434. The first outlet section 411, the second outlet section 421, and the third outlet section 431 are all in the shape of a bent pipe.

[0055] like Figure 10 and Figure 11 As shown, a first outlet 411 is at least partially located in a first inlet port 32, and has a first outlet 4110 located in the chamber of the first inlet port 32 or the distribution pipe 3. A second outlet 421 is at least partially located in a second inlet port 33, and has a second outlet 4210 located in the chamber of the second inlet port 33 or the distribution pipe 3. A third outlet 431 has a third outlet 4310 located in the chamber of the third inlet port 34 or the distribution pipe 3.

[0056] Optionally, the first guide tube 41 is integrally formed, the second guide tube 42 is integrally formed, and the third guide tube 43 is integrally formed.

[0057] Figures 12 to 15 The heat exchangers in three embodiments of this application are shown. The heat exchangers are basically the same in structure as the heat exchangers in the first and second embodiments of this application, except that the number of flow guide tubes in the flow guide structure 4 is different. The following is a brief description of the heat exchangers in the three embodiments of this application.

[0058] The flow guiding structure 4 includes two flow guiding pipes, namely a first flow guiding pipe 41 and a second flow guiding pipe 42. The distribution pipe 3 has a first inlet hole 32 and a second inlet hole 33.

[0059] The first flow guide pipe 41 comprises a first pipe portion 413 and a second pipe portion 414. The first pipe portion 413 is located in the first manifold chamber 20. Part of the second pipe portion 414 is located between the first end cover 22 and the inlet component 5. The first pipe portion 413 has a first outlet portion 411, which has a first outlet chamber 4111 and a first outlet 4110 in communication with the first outlet chamber 4111, and the first outlet chamber 4111 is in communication with the chamber of the distribution pipe 3.

[0060] The second pipe portion 414 further comprises a first inlet portion 415, which is located at the open end of the second pipe portion 414, and the first inlet portion 415 is connected with the inlet component 5, and the chamber of the inlet component 5 is in communication with the chamber of the first inlet portion 415, i.e. in communication with the port of the second pipe portion 414.

[0061] The second flow guide pipe 42 comprises a third pipe portion 423 and a fourth pipe portion 424. The third pipe portion 423 is located in the first manifold chamber 20. Part of the fourth pipe portion 424 is located between the first end cover 22 and the inlet component 5. The third pipe portion 423 has a second outlet portion 421, which has a second outlet chamber 4211 and a second outlet 4210 in communication with the second outlet chamber 4211, and the second outlet chamber 4211 is in communication with the chamber of the distribution pipe 3.

[0062] The fourth pipe portion 424 further comprises a second inlet portion 425, which is located at or near the open end of the fourth pipe portion 424, and the second inlet portion 425 is connected with the inlet component 5, and the chamber of the inlet component 5 is in communication with the chamber of the second inlet portion 425, i.e. in communication with the port of the fourth pipe portion 424.

[0063] The second pipe portion 414 comprises a first bending portion 416, and the fourth pipe portion 424 comprises a second bending portion 426.

[0064] The present application is not limited to the above-mentioned embodiments. According to the size of the heat exchanger, the length of the first manifold 21 is different, the length of the distribution pipe 3 is different, and the number of the flow guide pipes of the flow guide structure 4 is also different.

[0065] The flow guide structure 4 comprises a plurality of flow guide pipes, each of which comprises a first pipe portion 413 and a second pipe portion 414, the first pipe portion 413 is located in the first manifold chamber 20, and at least part of the second pipe portion 414 is located between the first end cover 22 and the inlet component 5.

[0066] The distribution pipe 3 also has a plurality of inlet holes arranged from one side to the other side in the length direction of the distribution pipe 3, the first pipe portion 413 includes a first outlet portion 411, at least part of the first outlet portion 411 is located in the inlet hole; the length of the plurality of first pipe portions 413 increases in turn from one side to the other side in the length direction of the distribution pipe 3, and the length of the corresponding plurality of second pipe portions 414 decreases in turn.

[0067] Figure 16 and Figure 17 The inlet component 5 in the embodiments of the present application is shown, which is horn-shaped in an optional manner.

[0068] In some embodiments of the present application, the inlet component 5 includes a first connecting piece 51 and a second connecting piece 52, the first connecting piece 51 is block-shaped, the first connecting piece 51 has a plurality of fourth through holes 510, each of the plurality of flow guide pipes passes through each of the plurality of fourth through holes 510 on one side, and the other side is connected with the chamber of the distribution pipe 3. The flow guide pipe has two open ends, one side of the flow guide pipe is located at or close to one open end of the flow guide pipe, and the other end of the flow guide pipe is located at or close to the other open end.

[0069] The second connecting piece 52 has an inlet chamber 520, the chamber of the flow guide pipe is communicated with the inlet chamber 520; one side of the flow guide pipe is connected with the second connecting piece 52, and the other end of the flow guide pipe is communicated with the inlet chamber 520. The inlet chamber 520 is communicated with the chamber of the pipe component in the heat exchange system.

[0070] Optionally, as shown in Figure 16 and Figure 17 The first connecting piece 51 is disc-shaped, one end of the first connecting piece 51 is cylindrical in the axial direction, one end of the second connecting piece 52 is cylindrical or cylindrical in the axial direction, and the inner wall surface of one end of the first connecting piece 51 is sealingly connected with the outer wall surface of one end of the second connecting piece 52.

[0071] The second connecting piece 52 also includes a first component 521, a second component 522 and a transition component 523, the first component 521 is cylindrical, the second component 522 is cylindrical, and the transition component 523 is conical, the transition component 523 is connected between the first component 521 and the second component 522, and the inner diameter of the second component 522 is smaller than the inner diameter of the first component 521.

[0072] The first connecting piece 51 is integrally formed, and the second connecting piece 52 is integrally formed.

[0073] The above merely describes the preferred embodiments of the present application, and is not intended to limit the present application in any form. Although the present application has been disclosed with the preferred embodiments as above, it is not intended to limit the present application, and any person skilled in the art can make some minor changes or modifications to the equivalent embodiments with the disclosed technical content without departing from the scope of the technical solutions of the present application. Any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present application without departing from the content of the technical solutions of the present application shall still fall within the scope of the technical solutions of the present application.

Claims

1. A heat exchanger, characterized in that, The device includes a first current collecting component, a distribution pipe, and a flow guiding structure. The flow guiding structure is connected to the first current collecting component and the distribution pipe. The first current collecting component has a first current collecting cavity, at least a portion of the distribution pipe is located in the first current collecting cavity, and the cavity of the flow guiding structure communicates with the cavity of the distribution pipe. The distribution pipe has multiple distribution holes, which are connected to the first collection cavity; The flow guiding structure includes multiple outlet chambers, each of which is connected to a chamber of a distribution tube. The flow guiding structure also includes three flow guiding tubes: a first flow guiding tube, a second flow guiding tube, and a third flow guiding tube. The first flow guiding tube includes a first section and a second section; the second flow guiding tube includes a third section and a fourth section; and the third flow guiding tube includes a fifth section and a sixth section. The first, third, and fifth sections are all located in a first collecting chamber. The length of the first section is less than the length of the third section, and the length of the third section is less than the length of the fifth section. The lengths of the multiple first sections increase sequentially from one side of the distribution tube's length direction to the other, while the corresponding lengths of the multiple second sections decrease sequentially.

2. The heat exchanger according to claim 1, characterized in that, The flow guiding structure includes a first flow guiding pipe and a second flow guiding pipe. The first flow guiding pipe includes a first outlet section with a first outlet. The second flow guiding pipe includes a second outlet section with a second outlet. The distribution pipe also has multiple inlet holes, which are staggered from the multiple inlet holes. The plurality of inlet holes include a first inlet hole and a second inlet hole, at least a portion of the first outlet is located in the first inlet hole, and the first outlet is located in the first inlet hole or the chamber of the distribution tube; at least a portion of the second outlet is located in the second inlet hole, and the second outlet is located in the second inlet hole or the chamber of the distribution tube; The first pipe section includes the first outlet section, which is located on one side of the length direction of the first pipe section, and the other side of the length direction of the first pipe section is connected to and communicates with the second pipe section. The third pipe section includes the second outlet section, which is located on one side of the length direction of the third pipe section, and the other side of the length direction of the third pipe section is connected and communicates with the fourth pipe section. The length of the first tube is less than the length of the third tube, and the length of the second tube is greater than the length of the fourth tube.

3. The heat exchanger according to claim 2, characterized in that, The heat exchanger also includes an inlet component, and the chamber of the flow guiding structure is connected to the chamber of the inlet component; At least a portion of the second pipe section is located between the inlet component and the first collector component, and at least a portion of the fourth pipe section is located between the inlet component and the first collector component; the second pipe section includes a first inlet section located at the open end of the second pipe section and connected to the inlet component; the fourth pipe section includes a second inlet section located at the open end of the fourth pipe section and connected to the inlet component. The second tube section includes a first bend, and the fourth tube section includes a second bend, wherein the length of the first bend is greater than the length of the second bend.

4. The heat exchanger according to claim 3, characterized in that, The first bending portion is in one or more of the following shapes: S-shaped bend, O-shaped bend, square bend, and elongated bend; the second bending portion is in one or more of the following shapes: S-shaped bend, O-shaped bend, square bend, and elliptical bend.

5. The heat exchanger according to claim 4, characterized in that, The first outlet section is bent, and the second outlet section is bent; the first and third pipe sections are arranged in parallel.

6. The heat exchanger according to claim 1, characterized in that, The distribution pipe also has multiple inlet holes, which are staggered from the multiple inlet holes; The heat exchanger also includes an inlet component, which is connected to the flow guiding structure, and the chamber of the inlet component is in communication with the chamber of the flow guiding structure; The plurality of inlet holes includes at least three inlet holes, and the chambers of at least three guide tubes are respectively connected to the chambers of the distribution tube. The three inlet holes are a first inlet hole, a second inlet hole and a third inlet hole. Along the length direction of the distribution tube, the second inlet hole is located between the first inlet hole and the third inlet hole, the first inlet hole is located on one side of the length direction of the distribution tube, and the third inlet hole is located on the other side of the length direction of the distribution tube. The first guide tube includes a first outlet, the second guide tube includes a second outlet, and the third guide tube includes a third outlet. The first outlet is at least partially located in the first inlet hole, the second outlet is at least partially located in the second inlet hole, and the third outlet is at least partially located in the third inlet hole. At least a portion of the second pipe is located between the first collector and the inlet, at least a portion of the fourth pipe is located between the first collector and the inlet, and at least a portion of the sixth pipe is located between the first collector and the inlet.

7. The heat exchanger according to claim 6, characterized in that, The first current collecting component includes a first current collecting pipe and a first end cap. The first current collecting pipe has a first port located at one end along the length of the first current collecting pipe. The first end cap is fitted with the circumferential wall of the first port. The first end cap is disc-shaped. The first end cap has a first through hole, a second through hole, and a third through hole axially formed. The first through hole is passed through one side of the second pipe section, the second through hole is passed through one side of the fourth pipe section, and the third through hole is passed through one side of the sixth pipe section.

8. The heat exchanger according to claim 1, characterized in that, The first current collecting component includes a first current collecting pipe and a first end cap. The first current collecting pipe has a first port located at one end along the length of the first current collecting pipe. The first end cap mates with the circumferential wall of the first port, and the circumferential wall of the first end cap mates with the inner wall of one end of the first current collecting pipe. The first end cap has a plurality of first through holes. The current guiding structure includes a plurality of current guiding pipes. Each of the plurality of current guiding pipes passes through each of the plurality of first through holes, and the outer wall of the current guiding pipe is connected to the inner wall of the first through hole. The heat exchanger also includes an inlet component, and the flow guiding structure is connected between the inlet component and the distribution pipe, and the chamber of the flow guiding structure is connected to the chamber of the distribution pipe and the chamber of the inlet component; Each of the aforementioned guide tubes includes a first tube section and a second tube section, wherein the first tube section is located in the first collecting cavity, and at least a portion of the second tube section is located between the first end cap and the inlet component; The distribution pipe also has a plurality of inlet holes, the plurality of distribution holes and the plurality of inlet holes are staggered, the plurality of inlet holes are arranged at intervals along the length direction of the distribution pipe, and the plurality of inlet holes are arranged from one side to the other side of the length direction of the distribution pipe. The first pipe portion includes a first outlet portion, at least a portion of the first outlet portion is located at the inlet hole. The plurality of distributing holes include a plurality of distributing holes, which are arranged at intervals along the length of the distributing pipe; the plurality of distributing holes are located on one side of the radial direction of the distributing pipe, and the plurality of inlet holes are located on the other side of the radial direction of the distributing pipe.

9. The heat exchanger according to claim 8, characterized in that, The imported component includes a first connector and a second connector. The first connector is block-shaped and has multiple fourth through holes. The fourth through holes are provided on one side of the guide tube, and the other side of the guide tube is connected to the distribution tube. The second connector has an inlet cavity, and the chamber of the guide tube communicates with the inlet cavity. The first connector has a cylindrical shape at one end in the circumferential direction. The second connector includes a first component, which has a cylindrical or cylindrical shape. The inner wall of one end of the first connector is connected to the outer wall of the first component.

10. The heat exchanger according to claim 9, characterized in that, The second connector further includes a second component and a transition component. The second component is cylindrical, and the transition component is conical. The transition component connects the first component and the second component. The inner diameter of the second component is smaller than the inner diameter of the first component. The first connector is integrally formed, the second connector is integrally formed, and each of the plurality of guide tubes is integrally formed.

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