Heat exchanger

Abstract

A heat exchanger (1), comprising a housing (2) and a heat exchange core body (3). The housing (2) comprises an accommodating cavity (22), and at least part of the heat exchange core body (3) is located in the accommodating cavity (22). The heat exchange core body (3) comprises a header portion (32) and a heat exchange portion (31), and the header portion (32) is fixedly connected to the heat exchange portion (31). The housing (2) comprises at least two limiting portions (23), and at least part of the header portion (32) is located between the two limiting portions (23). Each limiting portion (23) protrudes from an inner wall of the housing (2) towards the heat exchange core body (3), and each limiting portion (23) extends in a loading direction of the heat exchange core body (3). Each limiting portion (23) comprises a protruding end portion (231) and a connecting end portion (232). The connecting end portion (232) is connected to the housing (2), and the protruding end portion (231) is connected to the connecting end portion (232). At least part of the protruding end portion (231) contacts an outer peripheral wall of the header portion (32), and the distance between the two limiting portions (23) gradually increases from the protruding end portions (231) to the connecting end portions (232). A cooling medium is centrally distributed on the periphery of a refrigeration medium by means of the limiting portions (23), thereby improving the heat exchange cycle efficiency while ensuring simple assembly.

Description

A heat exchanger

[0001] This application claims priority to the Chinese patent application filed with the China Patent Office on November 17, 2023, with application number 202323112474.9 and invention name “A Heat Exchanger”, the entire contents of which are incorporated by reference into this application. Technical Field

[0002] The present application relates to the field of heat exchange technology, and in particular, to a heat exchanger. Background Art

[0003] Heat exchangers are commonly used heat exchange equipment. In some application scenarios, liquids need to be cooled or heated. This type of heat exchanger requires the core to be transferred into a shell with a certain volume. The fluid to be cooled or heated is located in the cavity of the shell, thereby achieving heat exchange between the refrigerant in the core and the fluid in the cavity of the shell.

[0004] The core is located within the outer shell. The better the fit between the core's outer wall and the inner wall of the shell, the more efficient the heat transfer of the fluid being exchanged. To achieve optimal heat transfer, the core must be stationary relative to the outer shell. Designing the positioning structure between the two to achieve optimal flow resistance without increasing processing complexity is a technical challenge. Summary of the Invention

[0005] The purpose of this application is to provide a heat exchanger that can improve the heat exchange effect without increasing the difficulty of processing.

[0006] The present application solves the above technical problems by mainly providing a heat exchanger, comprising a shell and a heat exchange core, wherein the shell comprises a receiving cavity, at least a portion of the heat exchange core is located in the receiving cavity, and the heat exchange core comprises a header portion and a heat exchange portion, wherein the header portion and the heat exchange portion are fixedly connected;

[0007] The shell includes at least two limiting parts, at least part of the manifold part is located between the two limiting parts, the limiting part protrudes from the inner wall of the shell toward the heat exchange core, and the limiting part extends along the installation direction of the heat exchange core. The limiting part includes a protruding end and a connecting end, the connecting end is connected to the shell, at least part of the protruding end contacts the outer peripheral wall of the manifold part, and the distance between the two limiting parts gradually increases from the protruding end to the connecting end.

[0008] The collecting pipe part is arranged between the two limiting parts, and the limiting part protrudes from the inner wall of the shell toward the heat exchange core. By setting the distance between the limiting parts of the two limiting collecting pipe parts gradually increases from the protruding end to the connecting end, the protruding end of the limiting part is at least partially in contact with the side wall of the collecting pipe part, so that the limiting part can limit the heat exchange core while also achieving a certain blocking effect on the heat exchange fluid. The smaller surface contact or line contact between the limiting part and the collecting pipe part has low assembly difficulty. Without increasing the assembly difficulty, the flow rate of the fluid to be heat exchanged between the outer wall of the collecting pipe part and the inner wall of the shell is reduced, so that most of the fluid to be heat exchanged passes through the heat exchange part, thereby improving the heat exchange effect of the heat exchanger. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] FIG1 is a schematic diagram of the overall structure of a heat exchanger according to an embodiment of the present application;

[0010] FIG2 is a schematic diagram of the heat exchanger separation area structure shown in one embodiment of the present application;

[0011] FIG3 is a schematic diagram of the internal assembly structure of the accommodating cavity according to an embodiment of the present application;

[0012] FIG4 is a schematic diagram of the heat exchange core assembly structure shown in one embodiment of the present application;

[0013] FIG5 is a schematic diagram of a distribution structure of a channel plate group according to an embodiment of the present application;

[0014] FIG6 is a schematic diagram of an end cover assembly structure according to an embodiment of the present application;

[0015] FIG7 is a schematic diagram of a housing structure according to an embodiment of the present application;

[0016] FIG8 is a cross-sectional view of the accommodating cavity structure shown in one embodiment of the present application;

[0017] FIG9 is a cross-sectional view of a housing structure according to an embodiment of the present application;

[0018] FIG10 is an enlarged schematic diagram of the limiting structure shown in an embodiment of the present application.

[0019] Reference numerals 1-heat exchanger, 2-shell, 3-heat exchange core, 4-heat exchange area, 5-assembly area; 21-end cover, 22-accommodating chamber, 23-limiting portion, 24-fluid inlet, 25-fluid outlet, 26-convex rib; 211-first clamping portion, 212-main body, 213-flange portion, 214-recess, 221-second clamping portion, 222-convex edge portion, 223-sunk groove, 231-protruding end portion, 232-connecting end portion; 31-heat exchange portion, 32-manifold portion, 33-heat exchange tube, 34-baffle, 35-connecting plate, 36-partition, 37-adapter block; 311-refrigeration medium inlet, 312-refrigeration medium outlet, 321-inlet channel, 322-outlet channel, 331-intermediate pipeline, 332-fin, 333-window portion, 341-first deflector, 342-second deflector, 343-through hole, 351-bending arm, 352-extension section, 353-free section, 354-plate body, 361-first heat exchange portion, 362-second heat exchange portion, 363-conducting channel, 371-connection inlet, 372-connection outlet. Specific embodiments

[0020] Exemplary embodiments will be described in detail herein, with examples illustrated in the accompanying drawings. In the following description, when referring to the drawings, identical numerals in different figures represent identical or similar elements, unless otherwise indicated. The embodiments described in the following exemplary embodiments are not intended to represent all embodiments consistent with the present application. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present application, as detailed in the appended claims.

[0021] It should be understood that the words "first", "second" and similar terms used in the specification and claims of this application do not indicate any order, quantity or importance, but are only used to distinguish different components. Similarly, words such as "one" or "an" do not indicate a quantitative limitation, but rather indicate the presence of at least one; "several" indicates a quantity of two or more, unless otherwise specified. Directional terms such as up, down, left, right, front, back, inside, outside, top, bottom, etc. mentioned or may be mentioned in the text are defined relative to the structure shown in the corresponding drawings. They are relative concepts and may therefore change accordingly depending on their different positions and different usage states. Therefore, these or other directional terms should not be interpreted as restrictive terms. Words such as "include" or "comprise" mean that the elements or objects appearing before "include" or "comprise" include the elements or objects listed after "include" or "comprise" and their equivalents, and do not exclude other elements or objects.

[0022] Some embodiments of the heat exchanger are described in detail below with reference to FIG1 to FIG10 . In the absence of conflict, the features of the following embodiments and implementations may complement or be combined with each other.

[0023] The present application provides a heat exchanger 1, including a shell 2 and a heat exchange core 3, the shell 2 includes a accommodating cavity 22, and the heat exchange core 3 is at least partially located in the accommodating cavity 22, wherein the accommodating cavity 22 includes at least a first flow channel for circulating a refrigerant medium and a second flow channel for circulating a cooling medium. Of course, the first flow channel can also circulate a cooling medium, the second flow channel can also circulate a refrigerant medium, or both the first flow channel and the second flow channel circulate a refrigerant medium or a cooling medium, and there is no limitation on this.

[0024] The heat exchange core 3 includes a heat exchange portion 31 and a header portion 32 , the shell 2 includes at least two limiting portions 23 , and the header portion 32 is at least partially located between the two limiting portions 23 .

[0025] Furthermore, the limiting portion 23 protrudes from the inner wall of the shell 2 toward the heat exchange core 3 and extends along the direction in which the heat exchange core 3 is installed into the shell 2. The limiting portion 23 includes a protruding end 231 and a connecting end 232. The limiting portion 23 is connected to the inner wall of the shell 2 through the connecting end 232. The protruding end 231 is at least partially in contact with the outer peripheral wall of the manifold portion 32 to separate the accommodating cavity 22 into at least a heat exchange area 4 and an assembly area 5, wherein the heat exchange portion 31 is located in the heat exchanger 4 and part of the manifold portion 32 is located in the assembly area 5.

[0026] In one embodiment, the distance between the two limiting portions 23 gradually increases from the protruding end portion 231 to the connecting end portion 232. It is understood that the limiting portions 23 are extended ribs that protrude toward the heat exchange core 3 along the inner wall of the shell 2, and the projection of the limiting portions 23 in a plane perpendicular to the direction in which the heat exchange core 3 is installed into the shell 2 gradually narrows from the connecting end portion 232 to the protruding end portion 231. The limiting portions 23 extend along the direction in which the heat exchange core 3 is installed into the shell 2, and at least a portion of the limiting portions 23 contacts the manifold 32. The two limiting portions 23 can limit the movement of the manifold 32 relative to the shell 2. At the same time, the limiting portions 23 separate the space between the manifold 32 and the shell 2, reducing the flow of the fluid to be heat exchanged between the outer wall of the manifold 32 and the inner wall of the shell 2, allowing most of the fluid to be heat exchanged to pass through the heat exchange portion 31, thereby improving the heat exchange efficiency of the heat exchanger.

[0027] It can also be understood that after the limiting portion 23 is narrowed in the protruding direction, a smooth fillet is formed at the tip position. The tip abuts against the manifold portion 32, thereby reducing the contact area between the limiting portion 23 and the outer surface of the manifold portion 32. The limiting is performed by line-surface matching, which not only reduces the contact area between the two, but also reduces the assembly resistance generated by the mutual friction of the contact surfaces during assembly, making it easier to install the heat exchange core 3 into the shell 2. Under the premise of not affecting the assembly effect, the reliability of the limiting portion 23 in sealing and blocking the cooling medium in the heat exchange zone 4 can be ensured by increasing the interference fit during assembly.

[0028] In another embodiment, the stopper 23 extends from the inner wall of the housing 2 toward the outer wall of the manifold 32. The stopper 23 includes a first support arm and a second support arm. One end of the first support arm and the second support arm are connected to the housing 2, and the other ends are connected to form a protruding end 231. Specifically, the stopper 23 is disposed at the junction of the two side walls of the housing 2. The first support arm and the second support arm of the stopper 23 extend from the two side walls toward the manifold 32, and the extension directions of the first support arm and the second support arm intersect at a point.

[0029] In addition, the heat exchanger 1 further includes a fluid inlet 24 and a fluid outlet 25 communicating with the second flow channel, and is connected to an external cooling water tank via the fluid inlet 24 and the fluid outlet 25 to form a heat exchange circulation loop of the cooling medium.

[0030] In one embodiment, a plane perpendicular to the direction in which the heat exchange core 3 is installed is defined as the first surface. The fluid inlet 24 and fluid outlet 25 are respectively provided on either side of the heat exchange core 3. The projections of at least a portion of the fluid inlet 24 and at least a portion of the fluid outlet 25 on the first surface are located outside the projection of the heat exchange core 3 on the first surface. It is easy to imagine that the cooling medium enters the heat exchange portion 31 within the inner cavity of the shell 2 through the fluid inlet 24, undergoes heat exchange in the heat exchange core 3, and is then discharged from the heat exchanger 1 to the cooling water tank through the fluid outlet 25, entering a new heat exchange cycle.

[0031] The fluid inlet 24 and / or the fluid outlet 25 are arranged close to the limiting portion 23. Preferably, the limiting portion 23 is at least arranged on a side of the fluid inlet 24 and the fluid outlet 25 away from the center of the heat exchange core 3.

[0032] As will be appreciated, the accommodating chamber 22 includes an inlet channel 321 communicating with the fluid inlet 24 and an outlet channel 322 communicating with the fluid outlet 25. The walls forming the inlet channel 321 and the outlet channel 322 include at least a portion of the wall of the stopper 23. The stopper 23 abuts against the outer wall of the manifold 32, directing the cooling medium toward the heat exchange portion 31, thereby improving the efficiency of heat exchange conversion with the refrigerant.

[0033] In addition, the heat exchange portion 31 includes a plurality of heat exchange tubes 33 and a plurality of fins 332 . The heat exchange tubes 33 are stacked along the loading direction of the heat exchange core 3 , and at least one fin 332 is provided between adjacent heat exchange tubes 33 .

[0034] In one embodiment, the inlet channel 321 and the outlet channel 322 extend along the stacking direction of the heat exchange tubes 33, and the inlet channel 321 and the outlet channel 322 are connected to the space between the heat exchange tubes 33. The two limiting portions 23 are respectively arranged on the side of the inlet channel 321 and the outlet channel 322 away from the center of the heat exchange tubes 33, and abut against the relatively protruding manifold portion 32 to form blocking walls on the sides of the inlet channel 321 and the outlet channel 322.

[0035] It is easy to imagine that there can also be four limiting parts 23, which are respectively arranged on both sides of the inlet channel 321 and the outlet channel 322, forming double-sided blocking walls of the inlet channel 321 and the outlet channel 322, guiding the cooling medium to flow into the heat exchange part 31 for heat exchange.

[0036] Furthermore, the heat exchange core 3 includes a partition 36, which is inserted into the heat exchange part 31 along the installation direction of the heat exchange core 3. The partition 36 is provided with a conducting channel 363 passing through the partition 36 near the end of the heat exchange core 3, and the cooling medium on both sides is circulated through the conducting channel 363.

[0037] In one embodiment, the heat exchange section 31 includes a first heat exchange section 361 and a second heat exchange section 362, with a partition 36 disposed between the first heat exchange section 361 and the second heat exchange section 362. Specifically, the first heat exchange section 361 comprises a plurality of heat exchange tubes 33 and fins 332 stacked on one side of the partition 36, while the second heat exchange section 362 comprises a plurality of heat exchange tubes 33 and fins 332 stacked on the other side of the partition 36. The heat exchange tubes 33 in the first and second heat exchange sections 361 and 362 communicate with each other through the header 32 at their ends, while the flow paths on the fins 332 communicate with each other through the conducting channels 363 in the partition 36.

[0038] As can be understood, by providing partitions 36 to separate and form reciprocating flow paths, the cooling medium's flow path on the surface of the heat exchange core 3 is extended, thereby increasing the heat exchange between the first and second flow channels, thereby allowing more heat carried by the cooling medium to be transferred to the refrigerant. It is also readily conceivable that the reciprocating flow paths could also be provided in multiple layers, evenly arranged on the surface of the heat exchange portion 31, to increase the heat exchange capacity.

[0039] In addition, a sink 223 is provided on the bottom wall of the shell 2, and the header portion 32 and / or the partition 36 at least projected along the direction of installation of the heat exchange core 3 falls into the sink 223, and the heat exchange portion 31 and the header portion 32 are positioned by the sink 223.

[0040] In one embodiment, the stopper 23 extends at least along the direction of insertion of the heat exchange core 3 to the bottom surface of the trough 223. Specifically, after the heat exchange core 3 is inserted along the insertion direction, the manifold 32 and the partition 36 fall into the trough 223 accordingly. By extending the stopper 23 to the bottom wall of the trough 223, bypassing of the cooling medium through the trough 223 is reduced. It is also understood that the sidewalls of the trough 223 are kept flush with the tip of the stopper 23. Due to the relatively small height of the trough 223, the positioning accuracy of the heat exchange core 3 is improved by appropriately increasing the resistance during insertion.

[0041] In addition, the heat exchanger 1 also includes an end cover 21, which is arranged at the opening of the shell 2. A first clamping portion 211 is provided on the end cover 21, and a second clamping portion 221 is provided on the shell 2. The first clamping portion 211 and the second clamping portion 221 are clamped together to achieve sealing between the shell 2 and the end cover 21, so that the end cover 21 and the shell 2 clamp and fix the heat exchange core 3 up and down.

[0042] Among them, the limiting part 23 is closer to the end cover 21 than the collecting pipe part 32 at the starting end along the installation direction of the heat exchange core 3. It can be understood that the height of the limiting part 23 in the installation direction of the heat exchange core 3 is at least higher than the collecting pipe part 32, so as to reduce the problem of side passage in the area of ​​the heat exchange part 31 close to the end cover 21.

[0043] The end cover 21 includes a main body 212 and a flange portion 213. The first clamping portion 211 is located at the flange portion 213. The first clamping portion 211 includes a recessed portion 214 formed by folding along the side wall of the flange portion 213 toward the main body 212. The second clamping portion 221 includes a convex edge 222 that is turned outward at the opening position of the shell 2.

[0044] In one embodiment, the projection of the convex portion 222 on the first surface and the projection of the recessed portion 214 at least partially overlap. Along the direction in which the heat exchange core 3 is installed, the convex portion 222 is located between the main portion 212 and the recessed portion 214 of the end cover 21. Specifically, when the end cover 21 is closed onto the shell 2, the main portion 212 abuts against the upper end surface of the convex portion 222. The flanged portion 213 extends along the closing direction of the end cover 21 and surrounds the side of the convex portion 222. The flanged portion 213 at least extends beyond the lower end surface of the convex portion 222 and bends inward in the excess area to form the recessed portion 214. The recessed portion 214 abuts against the lower end surface of the convex portion 222, so that the end cover 21 can be fixed to the opening of the shell 2 by clamping it with the convex portion 222 from above and below.

[0045] It is easy to imagine that the side wall of the flange portion 213 can also be provided with an opening, and the lower end surface of the flange portion 222 can be clamped by inserting a pin.

[0046] Furthermore, a seal is provided between the convex portion 222 and the main body portion 212, which is clamped along the closing direction of the end cover 21, and the first clamping portion 211 and the second clamping portion 221 are clamped and fixed along the concave folding direction of the recess 214, which is perpendicular to the clamping and positioning direction of the seal. Therefore, no force is applied to the seal during clamping and fixing, or the force is relatively small, thereby reducing the probability of the seal moving out of position after being deformed by force between the shell 2 and the end cover 21, thereby ensuring reliable and stable sealing performance.

[0047] In one embodiment, the end cap 21 covering the opening of the shell 2 is made of metal. The heat exchange core 3, which needs to circulate a refrigerant, is typically made of metal, which has better thermal conductivity. The heat exchange core 3 can be made of aluminum. The shell 2 is made of plastic, and the stopper 23 is provided on the inner wall of the plastic accommodating cavity 22. It is fixed to the outer wall of the heat exchange core 3 and blocks the gap between the inner wall of the shell 2 and the outer wall of the manifold 32.

[0048] During the assembly process, the heat exchange core 3 and the metal end cover 21 can be welded and fixed first, and then the end cover 21 and the plastic shell 2 can be clamped and fixed at the same time.

[0049] In one embodiment, the end cap 21 further includes an adapter block 37 welded to the outer wall of the end cap 21. The adapter block 37 is provided with a tubular connection inlet 371 and a connection outlet 372. The manifold 32 includes a refrigerant inlet 311 and a refrigerant outlet 312, respectively communicating with the connection inlet 371 and the connection outlet 372. The main pipe body of the heat exchange core 3 is disposed on the side of the end cap 21 facing away from the adapter block 37. The adapter block 37 and the heat exchange core 3 are respectively located on either side of the end cap 21 and are both welded to the end cap 21. The connection inlet 371 and the connection outlet 372 are at least partially communicated with the main pipe body of the heat exchange core 3.

[0050] It can be understood that the projections of the connecting inlet 371 and the connecting outlet 372 toward the heat exchange core 3 at least partially fall within the refrigerant medium inlet 311 and the refrigerant medium outlet 312 .

[0051] In addition, the heat exchange part 31 is composed of at least multiple heat exchange tubes 33 stacked up and down, and an intermediate pipeline 331 constituting a first flow channel is provided inside the heat exchange tube 33. The openings of the intermediate pipeline 331 are respectively located on both sides of the heat exchange tube 33. There are multiple intermediate pipelines 331, which are evenly arranged in the heat exchange tube 33.

[0052] Furthermore, the fin 332 includes window portions 333 , which are spaced apart along the length direction of the fin 332 . The window portions 333 create disturbances for the cooling medium, thereby achieving sufficient heat exchange.

[0053] In addition, the header portion 32 is provided at the end of the heat exchange portion 31 . The header portion 32 includes a baffle 34 and a connecting plate 35 . The baffle 34 and the connecting plate 35 are stacked on the ends of the heat exchange tubes 33 .

[0054] Furthermore, the connecting plate 35 includes a plate body 354 and a bending arm 351, the bending arm 351 includes an extension section 352 and a free section 353, the extension section 352 extends from the plate body 354 toward the side where the deflector 34 is located, and the free section 353 extends from the extension section 352 in a direction parallel to the extension direction of the deflector 34, and the protruding end 231 contacts at least part of the outer side surface of the bending arm 351.

[0055] It can be understood that the connecting plate 35 of the collecting pipe part 32 can be an open plate surface provided on the innermost side with a through hole 343, by providing a sealing plate for sealing the flow channel on the outermost side, and using the connecting plate 35 and the sealing plate to clamp and fix the baffle 34 in the middle position; or it can be a closed plate surface provided on the outermost side, and all the baffles 34 are assembled by clamping inward.

[0056] There is no specific restriction on the side fixing method of the collecting pipe part 32. It can also be assembled by a separate clamp or screw. The baffles 34 are stacked and aligned and then tightly assembled with the connecting plate 35 so that the cooling medium can shuttle through the adjacent baffle plate 34 plate surface channels along the through hole 343, reducing the probability of abnormal working conditions such as overflow from adjacent plate surfaces.

[0057] Furthermore, the baffle 34 is provided with a through hole 343 penetrating the baffle 34 , and the through holes 343 between adjacent baffles 34 have at least partially overlapping conductive areas.

[0058] In one embodiment, the manifold 32 includes at least a first baffle 341 and a second baffle 342. Specifically, the through-hole 343 of the first baffle 341 extends through the first baffle 341 along the extension direction of the heat exchange tube 33. The through-hole 343 matches the cross-section of the end of the heat exchange tube 33, and the end of the heat exchange tube 33 is inserted into the through-hole 343 of the first baffle 341. The through-hole 343 of the second baffle 341 extends through the second baffle 341 along the extension direction of the heat exchange tube 33. The diameter of the through-hole 343 of the second baffle 342 extends along the installation direction of the heat exchange core 3. The projection of the intermediate pipeline 331 in the adjacent heat exchange tube 33 along the installation direction of the heat exchange core 3 falls into the through-hole 343 on the second baffle 342.

[0059] As can be understood, since the assembly area 5 supports the plate body 354 on the side of the manifold 32 facing away from the heat exchange section 31, it is relatively far from the heat exchange section 31 and has relatively poor overall fluidity. By partitioning the space in the assembly area 5 with the stopper 23, on the one hand, it prevents some cooling medium from stagnating in the assembly area 5, thereby improving the overall utilization efficiency of the cooling medium. On the other hand, it also further aligns the relative positions of the cooling medium and the refrigerant, significantly increasing the transfer efficiency of the actual heat exchange process.

[0060] In addition, based on the lateral abutment of the limiting portion 23 against the heat exchange core 3, the shell 2 in the assembly area 5 includes a plurality of ribs 26. The ribs 26 protrude from the inner wall of the shell 2 toward the heat exchange core 3. At least part of the ribs 26 contact the wall of the manifold 32 away from the heat exchange portion 31. The ribs 26 extend along the installation direction of the heat exchange core 3. The ribs 26 are arranged between the two limiting portions 23. The ribs 26 ensure that the assembly position of the heat exchange core 3 and the shell 2 is relatively fixed, and the ribs 26 have the effect of reinforcing ribs on the shell 2. At the same time, the ribs 26 can divide the gap between the outer wall of the manifold 32 and the inner wall of the shell 2 into multiple areas, thereby reducing the flow rate of the fluid to be heat exchanged between the outer wall of the manifold 32 and the inner wall of the shell 2.

[0061] Specifically, the ribs 26 extend along the direction of insertion of the heat exchange core 3 and gradually widen. They can be ribs, bars, or segmented ribs perpendicular to the surface of the header 32. Furthermore, the ribs 26 are positioned between the two stoppers 23. Multiple ribs may be provided, but at least one rib 26 can abut the header 32 in a direction intersecting the direction of projection of the stoppers 23.

[0062] It should be noted that the above embodiments are only used to illustrate the present application and are not intended to limit the technical solutions described in the present application. Although this specification has described the present application in detail with reference to the above embodiments, ordinary technicians in this field should understand that technicians in the relevant technical field can still modify or replace the present application with equivalents, and all technical solutions and improvements that do not depart from the spirit and scope of the present application should be included in the scope of the claims of the present application.

Claims

1. A heat exchanger, characterized in that: It comprises a shell and a heat exchange core, the shell comprises a containing cavity, at least part of the heat exchange core is located in the containing cavity, the heat exchange core comprises a header portion, and the shell comprises at least two limiting portions; The collecting pipe part is at least partially located between the two limiting parts, and the limiting part includes a protruding end and a connecting end, the connecting end is connected to the shell, at least part of the protruding end contacts the outer peripheral wall of the collecting pipe part, and the distance between the limiting parts at least partially increases from the protruding end to the connecting end.

2. The heat exchanger according to claim 1, characterized in that: The limiting portion protrudes from the inner wall of the shell toward the heat exchange core, and the limiting portion extends along the installation direction of the heat exchange core. The heat exchanger includes a fluid inlet and a fluid outlet, and the fluid inlet and the fluid outlet are connected to the accommodating cavity. The plane perpendicular to the installation direction of the heat exchange core is defined as the first surface, and the projections of at least part of the fluid inlet and at least part of the fluid outlet on the first surface are located outside the projection of the heat exchange core on the first surface, and the fluid inlet and / or the fluid outlet are arranged close to the limiting portion.

3. The heat exchanger according to claim 2, characterized in that: The heat exchange core comprises a heat exchange part, the header part is fixedly connected to the heat exchange part, the heat exchange part comprises a plurality of heat exchange tubes and a plurality of fins, the heat exchange tubes are stacked along the loading direction of the heat exchange core, and at least one fin is arranged between two adjacent heat exchange tubes; The accommodating cavity includes an inlet channel connected to the fluid inlet and an outlet channel connected to the fluid outlet, the inlet channel and the outlet channel extend along the stacking direction of the heat exchange tubes, and the inlet channel and the outlet channel are connected to the space between the heat exchange tubes, and the walls forming the inlet channel and the outlet channel include at least a portion of the wall of the limiting portion.

4. The heat exchanger according to any one of claims 1 to 3, characterized in that: The collecting pipe part includes a connecting plate and a baffle, the connecting plate includes a plate body and a bending arm, the bending arm includes an extension section and a free section, the extension section extends from the plate body to the side where the baffle is located, the free section extends from the extension section in a direction parallel to the extension direction of the baffle, and the protruding end is in contact with at least part of the outer side surface of the bending arm.

5. The heat exchanger according to claim 4, characterized in that: The shell includes a plurality of ribs, which protrude from the inner wall of the shell toward the heat exchange core. At least part of the ribs contact the wall of the manifold away from the heat exchange part. The ribs extend along the direction in which the heat exchange core is installed, and the ribs are arranged between the two limiting parts.

6. The heat exchanger according to claim 5, characterized in that The heat exchanger includes an end cover, which is arranged at the opening of the shell. The end cover includes a first clamping portion, and the shell includes a second clamping portion. The first clamping portion and the second clamping portion are clamped together. Along the direction of installation of the heat exchange core, the end of the limiting portion close to the end cover is closer to the end cover than the collecting pipe portion.

7. The heat exchanger according to claim 6, characterized in that The end cover includes a main body and a flange portion, the first clamping portion is located at the flange portion, the first clamping portion includes a recessed portion, the shell includes a convex portion, the projection of the convex portion on the first surface and the projection of the recessed portion at least partially overlap, and along the direction in which the heat exchange core is installed, the convex portion is located between the end cover main body and the recessed portion.

8. The heat exchanger according to claim 7, characterized in that The end cover is made of metal, the heat exchange core is welded and fixed to the inner side of the end cover, the end cover also includes a transition block welded and fixed to the outer side, the transition block includes a connection inlet and a connection outlet, the manifold includes a refrigerant medium inlet and a refrigerant medium outlet, and the connection inlet and the connection outlet are respectively connected to the refrigerant medium inlet and the refrigerant medium outlet.

9. The heat exchanger according to any one of claims 1 to 8, characterized in that: The heat exchange core further includes a partition, the heat exchange portion includes a first heat exchange portion and a second heat exchange portion, the partition is disposed between the first heat exchange portion and the second heat exchange portion, the partition includes a conduction channel, and the conduction channel runs through the partition.

10. The heat exchanger according to claim 9, characterized in that The shell includes a sink groove arranged on the bottom wall of the shell, and the projection of the collecting pipe part and / or the partition at least along the direction of the heat exchange core installation falls into the sink groove, and the limiting part extends at least along the direction of the heat exchange core installation to the bottom surface of the sink groove.

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