Heat exchanger and air conditioning system
By using a combination of limiting beams and elastic elements in the heat exchanger, the stress concentration problem caused by thermal expansion and contraction is solved, improving the stability and reliability of transportation and operation, and enhancing product quality and performance.
Patent Information
- Application Number
- CN202521817684.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-26
- Publication Date
- 2026-08-25
- Estimated Expiration
- 2035-08-26
AI Technical Summary
During transportation and operation, heat exchangers are prone to cracking and refrigerant leakage due to stress concentration caused by thermal expansion and contraction, which affects product quality and performance.
The combination of limiting beams and elastic elements allows the heat exchange fins to have a certain amount of room to move on the frame assembly. The movement range of the heat exchange fins is limited by the limiting beams and elastic elements, thereby reducing stress concentration.
This improves the stability of heat exchanger transportation and operation, reduces the risk of damage at the heat exchanger fin connections, and enhances product quality and performance.
Smart Images
Figure CN224680986U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of air conditioning, and more particularly to a heat exchanger and an air conditioning system. Background Technology
[0002] Heat exchangers are crucial components of air conditioning systems, playing a vital role in both cooling and heating modes. Therefore, improving the structural stability of heat exchangers directly impacts their quality and performance.
[0003] It should be noted that the statements in this background section only provide background information relevant to this application and do not necessarily constitute prior art. Utility Model Content
[0004] This application provides a heat exchanger and an air conditioning system to improve the stability of the heat exchanger.
[0005] This application provides a heat exchanger, including a heat exchanger plate assembly, a frame assembly, and a first limiting beam. The heat exchanger plate assembly includes a plurality of heat exchanger plates arranged side by side in a first direction. The frame assembly includes a receiving space formed inside the frame assembly, and the heat exchanger plate assembly is disposed within the receiving space. The frame assembly includes a first frame and a second frame respectively disposed at both ends of the heat exchanger plate assembly in a second direction, which intersects with the first direction. The heat exchanger plate assembly is fixedly connected to the first frame. The first limiting beam is disposed on the second frame, and the first limiting beam is spaced apart from the heat exchanger plate assembly in the second direction.
[0006] In some embodiments, the second frame is a U-shaped structure, and the first limiting beam extends along a first direction and is connected to the second frame to close the opening end of the U-shaped structure.
[0007] In some embodiments, the second frame includes a base rod and two uprights spaced apart in a first direction. The base rod extends along the first direction, and the uprights extend along a third direction. The third direction is perpendicular to both the first and second directions. The base rod and the two uprights enclose the outline of a U-shaped structure. The two ends of the first limiting beam along the first direction are respectively connected to the two uprights.
[0008] In some embodiments, a gasket is further included, which is disposed on the two uprights respectively. The two ends of the first limiting beam in the first direction are connected to the gasket respectively. The gasket is used to increase the gap between the first limiting beam and the heat exchange plate assembly in the second direction.
[0009] In some embodiments, a second limiting beam is further included, which is spaced apart from the first limiting beam in a third direction. The third direction is perpendicular to both the first and second directions. The second limiting beam extends along the first direction and is disposed on the second frame. The second limiting beam is fixedly disposed relative to the second frame.
[0010] In some embodiments, the second limiting beam includes a beam body and a plurality of protruding teeth protruding toward the heat exchanger assembly relative to the beam body in a second direction. The plurality of protruding teeth are spaced apart in a first direction, and a limiting groove is formed between two adjacent protruding teeth. The plurality of heat exchangers correspond one-to-one with the plurality of limiting grooves. The plurality of heat exchangers extend into the plurality of limiting grooves respectively, and each heat exchanger is spaced apart from two adjacent protruding teeth in a first direction.
[0011] In some embodiments, the system further includes a first elastic element group disposed at the second frame. The first elastic element group includes a plurality of elastic elements, which are disposed one-to-one with a plurality of heat exchange plates. The two ends of the elastic elements are respectively connected to the second limiting beam and the heat exchange plates. The elastic elements can undergo elastic deformation in the second direction and / or the third direction. The third direction is perpendicular to both the first and second directions.
[0012] In some embodiments, a second elastic element group is further provided at the second frame. The second elastic element group includes a plurality of elastic elements, which are provided one-to-one with a plurality of heat exchange plates. The two ends of the elastic elements are respectively connected to the frame assembly and the heat exchange plates. The elastic elements can undergo elastic deformation in a second direction and / or a third direction. The third direction is perpendicular to both the first and second directions.
[0013] In some embodiments, the elastic element includes a first body and a second body disposed on the first body. The first body is spaced apart from the heat exchange plate in a second direction, and the first body is fixedly disposed relative to the frame assembly. The second body extends toward the heat exchange plate and is connected to the heat exchange plate. The second body can be deflected relative to the first body under the action of the heat exchange plate.
[0014] In some embodiments, the elastic member further includes a third body disposed at the end of the second body that is connected to the heat exchange plate, the third body extending in a third direction and being fitted and connected to the heat exchange plate.
[0015] A second aspect of this application provides an air conditioning system including the heat exchanger described above.
[0016] The technical solution based on this application includes a heat exchanger assembly, a frame assembly, and a first limiting beam. The heat exchanger assembly includes multiple heat exchanger plates arranged side-by-side in a first direction. The frame assembly includes a receiving space formed within the frame assembly, and the heat exchanger assembly is disposed within the receiving space. The frame assembly includes a first frame and a second frame respectively disposed at both ends of the heat exchanger assembly in a second direction, intersecting the first direction. The heat exchanger assembly is fixedly connected to the first frame. The first limiting beam is disposed on the second frame and is spaced apart from the heat exchanger assembly in the second direction. By fixing the first end of the heat exchanger assembly relative to the frame assembly and allowing the second end of the heat exchanger assembly to move relative to the frame assembly, and defining the movement space of the heat exchanger plates with the first limiting beam, the stability and reliability of the heat exchanger during transportation or operation can be significantly improved, thereby improving the quality and performance of the heat exchanger product.
[0017] Other features and advantages of this application will become clear from the following detailed description of exemplary embodiments with reference to the accompanying drawings. Attached Figure Description
[0018] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:
[0019] Figure 1 This is a schematic diagram of the overall structure of a heat exchanger according to some embodiments of this application.
[0020] Figure 2 This is a schematic diagram of the overall structure of a heat exchanger according to some embodiments of this application from another perspective.
[0021] Figure 3 This is a front view of a heat exchanger according to some embodiments of this application.
[0022] Figure 4 for Figure 1 A magnified view of the gasket location.
[0023] Figure 5 for Figure 1 Enlarged view of the location of the first elastic sheet group in the middle.
[0024] Figure 6 for Figure 1 A magnified view of the location of the second elastic plate group.
[0025] Figure 7 for Figure 1 Top view.
[0026] Figure 8 for Figure 7A magnified view of the part where the limiting groove of the second limiting beam meets the heat exchange plate.
[0027] Figure 9 This is a schematic diagram of the structure of the first limiting beam in some embodiments of this application.
[0028] Figure 10 This is a schematic diagram of the structure of the second limiting beam in some embodiments of this application.
[0029] Figure 11 This is a schematic diagram of the structure of the elastic element in some embodiments of this application.
[0030] Figure label:
[0031] 10. Heat exchanger assembly; 11. Heat exchanger fins;
[0032] 20. Frame component; 20a. First frame; 20b. Second frame; 21. Base pole; 22. Upright pole;
[0033] 30. First limiting beam;
[0034] 40. Gaskets;
[0035] 50. Second limiting beam; 51. Beam body; 52. Convex tooth;
[0036] 60. Elastic element; 61. First body; 62. Second body; 63. Third body; 64. Fourth body;
[0037] 70. Inlet pipe; 80. Outlet pipe;
[0038] X, first direction; Y, second direction; Z, third direction. Detailed Implementation
[0039] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit this application or its application or use. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.
[0040] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values of the components and steps described in these embodiments do not limit the scope of this application. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.
[0041] For ease of description, spatial relative terms such as "above," "over," "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 "above" 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, and the spatial relative descriptions used herein will be interpreted accordingly.
[0042] Heat exchangers are a crucial component of air conditioning systems, enabling refrigerant to undergo a phase change and exchange heat with the surrounding air. The inventors of this application have discovered that heat exchangers experience stress concentration due to thermal expansion and contraction during operation. Furthermore, repeated long-distance transport during customer visits can also cause stress concentration. The rigid connection (welded and bolted) between the heat exchanger's mounting frame and the heat exchange fins prevents effective stress release during long-distance transport, easily leading to cracks at the connection points. After the unit starts operating, the heat exchange fins are further compressed by the mounting frame due to thermal expansion and contraction, leaving no space for stress release. This results in refrigerant leakage, ultimately affecting the quality and performance of the heat exchanger and causing significant economic losses.
[0043] Therefore, refer to Figure 1 and 2Some embodiments of this application provide a heat exchanger including a heat exchange plate assembly 10, a frame assembly 20, and a first limiting beam 30.
[0044] The heat exchanger assembly 10 includes a plurality of heat exchanger plates 11 arranged in parallel in the first direction X.
[0045] The frame assembly 20 includes a receiving space formed inside the frame assembly 20. The heat exchanger assembly 10 is disposed within the receiving space. The frame assembly 20 includes a first frame 20a and a second frame 20b respectively disposed at both ends of the heat exchanger assembly 10 in a second direction Y. The second direction Y intersects the first direction X. The heat exchanger assembly 10 is fixedly connected to the first frame 20a.
[0046] The first limiting beam 30 is disposed on the second frame 20b. The first limiting beam 30 is disposed at a distance from the heat exchanger assembly 10 in the second direction Y.
[0047] Specifically, the frame component 20 is basically a cuboid structure. The width of the frame component 20 is set along the first direction X, and the length of the frame component 20 is set along the second direction Y. The first direction X and the second direction Y are perpendicular. The height direction of the frame component 20 is perpendicular to the plane formed by the first direction X and the second direction Y, and the height direction of the frame component 20 is defined as the third direction Z.
[0048] The heat exchange plate 11 is generally rectangular in shape. The length of the heat exchange plate 11 is parallel to the second direction Y, the width of the heat exchange plate 11 is basically consistent with the height direction Z of the frame assembly 20, and the thickness of the heat exchange plate 11 is consistent with the first direction X. The surface formed by the long and wide sides of the heat exchange plate 11 is defined as the heat exchange surface of the heat exchange plate 11, and the heat exchange surfaces of adjacent heat exchange plates 11 are arranged opposite each other. A flow channel for refrigerant flow is provided inside the heat exchange plate 11. The two ends of the heat exchange plate 11 in the second direction Y are defined as the first end and the second end, respectively. Multiple heat exchange plates 11 are arranged side-by-side, such that the first ends of the multiple heat exchange plates 11 are at the same position in the second direction Y, which is the first end of the heat exchange plate assembly 10. Correspondingly, the second ends of the multiple heat exchange plates 11 are at the same position in the second direction Y, which is the second end of the heat exchange plate assembly 10. The top of the first end of the heat exchange plate 11 serves as a refrigerant inlet and is fixedly connected to the inlet pipe 70 to allow the refrigerant in the inlet pipe 70 to enter the heat exchange plate 11. The bottom of the first end of the heat exchange plate 11 serves as a refrigerant outlet and is fixedly connected to the discharge pipe 80, used to discharge the refrigerant that has completed heat exchange within the heat exchange plate 11 into the discharge pipe 80. A first connecting pipe 12 is provided at the top of the first end of the heat exchange plate 11, and the first connecting pipes 12 of multiple heat exchange plates 11 are welded to and connected to the inlet pipe 70. A second connecting pipe 13 is provided at the bottom of the first end of the heat exchange plate 11, and the second connecting pipes 13 of multiple heat exchange plates 11 are welded to and connected to the discharge pipe 80.
[0049] The gaseous refrigerant in the inlet pipe 70 enters the heat exchanger 11 from the top of the first end through the first connecting pipe 12. After heat exchange, it transforms into liquid refrigerant and then exits through the outlet pipe 80 through the second connecting pipe 13 at the bottom of the first end of the heat exchanger 11. In this case, the heat exchanger 11 functions as a condenser. Alternatively, the liquid refrigerant in the inlet pipe 70 enters the heat exchanger 11 from the top of the front end through the first connecting pipe 12. After heat exchange, it transforms into gaseous refrigerant and then exits through the outlet pipe 80 through the second connecting pipe 13 at the bottom of the first end of the heat exchanger 11. In this case, the heat exchanger 11 functions as an evaporator.
[0050] Normally, the inlet pipe 70 and the outlet pipe 80 are fixedly connected to the frame assembly 20. The top of the first end of the heat exchanger 11 is fixedly connected to the top region of the frame assembly 20 (e.g., by bolts), and the bottom of the first end of the heat exchanger 11 is also fixedly connected to the bottom region of the frame assembly 20 (e.g., by bolts). By spacing the first limiting beam 30 from the second end of the heat exchanger 11, or in other words, by creating a certain gap between the first limiting beam 30 and the second end of the heat exchanger 11 in the second direction Y, the heat exchanger 11 can be displaced in the second direction Y. For example, during the transport of the heat exchanger, shaking or bumping may occur, or during the operation of the heat exchanger, thermal expansion and contraction may occur due to heat exchange at the heat exchanger 11, causing the heat exchanger 11 to tend to move closer to the first limiting beam 30 in the second direction Y. This gap allows the heat exchanger 11 to move closer to the first limiting beam 30. The two ends are close to the first limiting beam 30, or in other words, this gap provides movement space for the heat exchange plate 11, which can effectively reduce stress concentration on the heat exchange plate 11, thereby reducing the risk of damage and cracking at the fixed connection points of the first end of the heat exchange plate 11 (i.e., the welded connection between the first connecting pipe 12 and the input pipe 70, the welded connection between the second connecting pipe 13 and the discharge pipe 80, the connection between the top of the first end of the heat exchange plate 11 and the top of the frame assembly 20, and the connection between the bottom of the first end of the heat exchange plate 11 and the bottom of the frame assembly 20). Moreover, the first limiting beam 30 can also limit the second end of the heat exchange plate 11, reducing the adverse effects caused by excessive displacement of the heat exchange plate 11 in the second direction Y.
[0051] In summary, by fixing the first end of the heat exchanger assembly 10 relative to the frame assembly 20 and making the second end of the heat exchanger assembly 10 movable relative to the frame assembly 20 and limiting the activity space of the heat exchanger 11 with the first limiting beam 30, the stability and reliability of the heat exchanger during transportation or operation can be significantly improved, thereby improving the quality and performance of the heat exchanger product.
[0052] In some embodiments, the gap between the first limiting beam 30 and the second end of the heat exchange plate 11 in the second direction Y is configured to be 10 mm.
[0053] refer to Figure 1 In some embodiments, the first limiting beam 30 is constructed as a long strip structure, and the size of the first limiting beam 30 in the first direction X is greater than or equal to the size of the heat exchanger assembly 10 in the first direction X, so that the first limiting beam 30 can reserve space for all the heat exchanger 11 while playing a limiting role, thereby better ensuring the stability and reliability of the heat exchanger.
[0054] In some embodiments, the second frame 20b is a U-shaped structure, and the first limiting beam 30 extends along the first direction X and is connected to the second frame 20b to close the opening end of the U-shaped structure.
[0055] Specifically, the cross-sectional shape of the second frame 20b is approximately U-shaped, with two side frames spaced apart in the first direction X. The central region of the second frame 20b is a through-type structure in the second direction Y. The first limiting beam 30 is connected to the two side frames at both ends along the first direction X, thereby allowing the first limiting beam 30 to span the through-type portion of the second frame 20b and cover it. The through-type portion corresponds to the position of the heat exchanger assembly 10 in the first direction X. The through-type portion provides space for the displacement of the heat exchanger assembly 10 in the second direction Y. By having the first limiting beam 30 cover the through-type portion, the movement of the heat exchanger assembly 10 in the second direction Y can be limited. If the cross-sectional shape of the second frame 20b is set as a closed plate structure in the second direction Y, the first limiting beam 30 needs to be positioned between the second frame 20b and the heat exchanger assembly 10 in the second direction Y. Only in this way can there be a gap between the first limiting beam 30 and the second end of the heat exchanger assembly 10 to support the movement of the heat exchanger assembly 10 in the second direction Y. However, this will cause the first limiting beam 30 to occupy the accommodating space of the frame assembly 20, making the overall size of the frame assembly 20 larger, which is not conducive to cost saving and lightweighting. By setting a through-hole in the second frame 20b, the structure of the frame assembly 20 can be simplified, the size of the heat exchanger in the second direction Y can be reduced, which is conducive to achieving lightweighting of the frame assembly 20 and reducing the cost of the frame assembly 20. (Refer to previous text) Figure 1 In some embodiments, the second frame 20b includes a base rod 21 and two uprights 22 spaced apart in a first direction X. The base rod 21 extends along the first direction X. The uprights 22 extend along a third direction Z. The third direction Z is perpendicular to both the first direction X and the second direction Y. The base rod 21 and the two uprights 22 enclose a U-shaped structure. The first limiting beam 30 is connected to the two uprights 22 at both ends along the first direction X.
[0056] Specifically, the base rod 21 and the two upright rods 22 are both rectangular long rods, and the first limiting beam 30 is set on one side of the upright rod 22 facing away from the heat exchanger assembly 10. For example, the first limiting beam 30 can be set at the end of the rear upright rod 22 away from the base rod 21. The base rod 21 and the two upright rods 22 form a U-shaped frame structure, and the base rod 21, the two upright rods 22 and the first limiting beam 30 enclose a rectangular frame structure that runs through the middle, thereby improving the structural strength at the second frame 20b.
[0057] refer to Figure 4 In some embodiments, the heat exchanger further includes gaskets 40. Gaskets 40 are respectively disposed on two uprights 22. The two ends of the first limiting beam 30 in the first direction X are respectively connected to the gaskets 40. The gaskets 40 are used to increase the gap between the first limiting beam 30 and the heat exchanger assembly 10 in the second direction Y.
[0058] The frame assembly 20 generally also includes a connecting rod connecting the first frame 20a and the second frame 20b. The connecting rod extends along the second direction Y, and its dimension in the second direction Y is approximately equal to the dimension of the heat exchanger assembly 10 in the second direction Y, so that the second end of the heat exchanger 11 and the second frame 20b are basically at the same position in the second direction Y. If the first limiting beam 30 is directly set on the second frame 20b, the gap between the first limiting beam 30 and the second end of the heat exchanger 11 will be insufficient, resulting in limited movement space for the heat exchanger 11. If the dimension of the connecting rod is directly increased, the overall size of the frame assembly 20 will be larger, increasing the overall cost of the frame assembly 20 and hindering lightweight design. By setting the gasket 40, the gap between the first limiting beam 30 and the second end of the heat exchanger 11 can be increased at a lower cost without increasing the size of the frame assembly 20.
[0059] refer to Figure 1 , 5 In some embodiments, the heat exchanger further includes a second limiting beam 50. The second limiting beam 50 is spaced apart from the first limiting beam 30 in a third direction Z. The second limiting beam 50 extends along a first direction X and is disposed on the second frame 20b. The second limiting beam 50 is fixedly disposed relative to the second frame 20b.
[0060] The second limiting beam 50 and the second end of the heat exchange plate 11 are spaced apart in the second direction Y. The second limiting beam 50 can cooperate with the first limiting beam 30 to jointly limit the heat exchange plate 11 in the second direction Y. Moreover, the second limiting beam 50 can also improve the structural strength of the second frame 20b.
[0061] In some embodiments, the second limiting beam 50 includes a beam body 51 and a plurality of protruding teeth 52 protruding relative to the beam body 51 toward the heat exchanger assembly 10 in the second direction Y. The plurality of protruding teeth 52 are spaced apart in the first direction X. A limiting groove is formed between two adjacent protruding teeth 52, and a plurality of heat exchanger plates 11 correspond one-to-one with the plurality of limiting grooves. The plurality of heat exchanger plates 11 extend into the plurality of limiting grooves, and each heat exchanger plate 11 is spaced apart from two adjacent protruding teeth 52 in the first direction X.
[0062] Specifically, the second limiting beam 50 is positioned near the bottom rod 21 in the third direction Z, for example, relative to the first limiting beam 30. Both ends of the second limiting beam 50 in the first direction X are connected to one side of the two uprights 22 facing away from the heat exchanger assembly 10, in other words, the second limiting beam 50 also covers the through portion of the second frame 20b. Multiple protrusions 52 are evenly spaced in the first direction X, and the protrusions 52 on the second limiting beam 50 extend into the receiving cavity along the second direction Y, forming a limiting groove within the receiving cavity. The second end of the heat exchanger 11 extends into the limiting groove, and the distance between the second end of the heat exchanger 11 and the two protrusions 52 forming the limiting groove in the first direction X is equal. Based on this, the limiting groove allows the second end of the heat exchanger 11 to have room to move in the first direction X, allowing a small displacement of the second end of the heat exchanger 11 in the first direction X.
[0063] In some embodiments, the second limiting beam 50 is also connected to the upright 22 via a gasket 40. The gasket 40 allows for a simpler structure to increase the distance between the beam body 51 of the second limiting beam 50 and the second end of the heat exchange plate 11 in the second direction Y, thereby reducing the collision between the second end of the heat exchange plate 11 and the beam body 51 when the heat exchange plate 11 moves in the second direction Y.
[0064] In some embodiments, the distance between the second end of the heat exchange plate 11 and the two protrusions 52 forming the limiting groove in the first direction X is configured to be no more than 6 mm.
[0065] refer to Figure 5 and 11 In some embodiments, the heat exchanger further includes a first elastic element group disposed at the second frame 20b. The first elastic element group includes a plurality of elastic elements 60. The plurality of elastic elements 60 are disposed in a one-to-one correspondence with a plurality of heat exchange plates 11, and the two ends of the elastic elements 60 are respectively connected to the second limiting beam 50 and the heat exchange plates 11. The elastic elements 60 are capable of elastic deformation in the second direction Y and the third direction Z.
[0066] Specifically, since the second limiting beam 50 is fixedly connected to the frame assembly 20, one end of the elastic element 60 is relatively fixed to the frame assembly 20, and the other end of the elastic element 60 can move with the heat exchange plate 11 when it undergoes displacement in the second direction Y. During this process, the elastic element 60 undergoes elastic deformation, thereby controlling the movement of the heat exchange plate 11 in the second direction Y within a certain range. Similarly, when the heat exchange plate 11 moves in the third direction Z, the other end of the elastic element 60 can move with the heat exchange plate 11 in the third direction Z. During this process, the elastic element 60 undergoes elastic deformation, thereby controlling the movement of the heat exchange plate 11 in the third direction Y within a certain range. Furthermore, the elastic deformation of the elastic element 60 can also buffer the movement of the heat exchange plate 11.
[0067] refer to Figure 6 and 11 In some embodiments, the heat exchanger further includes a second elastic element group disposed at the second frame 20b. The second elastic element group includes a plurality of elastic elements 60. The plurality of elastic elements 60 are disposed in a one-to-one correspondence with a plurality of heat exchange plates 11. And the two ends of the elastic elements 60 are respectively connected to the frame assembly 20 and the heat exchange plates 11. The elastic elements 60 are capable of elastic deformation in the second direction Y and the third direction Z.
[0068] Specifically, one end of the elastic element 60 in the second elastic element group is fixedly connected to the base rod 21, and the other end of the elastic element 60 is connected to the second end of the heat exchange plate 11. This allows the other end of the elastic element 60 to move along with the heat exchange plate 11 when it undergoes displacement in the second direction Y. During this process, the elastic element 60 undergoes elastic deformation, thereby controlling the movement of the heat exchange plate 11 in the second direction Y within a certain range. Similarly, when the heat exchange plate 11 moves along the third direction Z, the other end of the elastic element 60 can move along with the heat exchange plate 11 in the third direction Z. During this process, the elastic element 60 undergoes elastic deformation, thereby controlling the movement of the heat exchange plate 11 in the third direction Y within a certain range. Furthermore, the elastic deformation of the elastic element 60 also acts as a buffer for the movement of the heat exchange plate 11.
[0069] In some embodiments, the heat exchanger includes both a first elastic element group and a second elastic element group. Providing two elastic element groups simultaneously can further enhance the control of the elastic element 60 over the movement range of the heat exchange plate 11 and its buffering effect during movement.
[0070] In some embodiments, the elastic element 60 includes a spring.
[0071] In some embodiments, the elastic element 60 is configured as a sheet metal sheet. The sheet metal sheet has good elasticity and plasticity, which can control the movement of the heat exchange fin 11 within an elastic range, effectively preventing stress concentration in the heat exchange fin assembly in the second direction Y and the third direction Z.
[0072] Advantageously, the thickness of the sheet metal sheet is 0.6 to 1 mm, preferably 0.8 mm.
[0073] refer to Figure 11 In some embodiments, the elastic element 60 includes a first body 61 and a second body 62 disposed on the first body 61. The first body 61 is spaced apart from the heat exchange plate 11 in the second direction Y. The first body 61 is fixedly disposed relative to the frame assembly 20. The second body 62 extends toward and connects to the heat exchange plate 11. The second body 62 is deflectable relative to the first body 61 under the action of the heat exchange plate 11.
[0074] Specifically, both the first body 61 and the second body 62 are sheet-like structures, and both have a certain degree of elasticity. The first body 61 extends along a third direction Z, and the second body 62 extends along a second direction Y, with the first body 61 and the second body 62 perpendicular to each other. The bottom of the first body 61 in the third direction Z is fixed relative to the frame assembly, for example, by being fixedly connected to the second limiting beam 50 or to the rear bottom rod 21. The top of the first body 61 in the third direction Z is connected to one end of the second body 62, and the other end of the second body 62 is connected to the second end of the heat exchange plate 11. When the heat exchange plate 11 moves along the second direction Y, the second end of the heat exchange plate 11 causes the first body 61 to bend and deform through the second body 62, thereby allowing the elastic element 60 to restrict and buffer the movement of the heat exchange plate 11. When the heat exchange plate 11 moves along the third direction Z, the second end of the heat exchange plate 11 can drive the second body 62 to deflect relative to the first body 61. For example, the angle between the first body 61 and the second body 62 changes from the initial 90° to a larger or smaller angle, so that the elastic member 60 can limit and buffer the movement of the heat exchange plate 11.
[0075] In some embodiments, the elastic member 60 further includes a third body 63 disposed at the end of the second body 62 that is connected to the heat exchange plate 11. The third body 63 extends in a third direction Z and is attached to and connected to the heat exchange plate 11.
[0076] Specifically, the third body 63 is a thin sheet structure and has a certain elasticity. The third body 63 is welded to the second end of the heat exchange plate 11. The third body 63 can increase the connection area between the elastic element 60 and the heat exchange plate 11 and improve the stability of the connection between the elastic element 60 and the heat exchange plate 11.
[0077] In some embodiments, the elastic member 60 further includes a fourth body 64 disposed at the bottom of the first body 61 in the third direction Z. The fourth body 64 extends in the second direction Y. The fourth body 64 has a sheet-like structure. The fourth body 64 serves as a fixed end of the elastic member 60, and more specifically, the fourth body 64 is used for fixed connection with the bottom rod 21 or the second limiting beam 50. The fourth body 64 can increase the connection area between the elastic member 60 and the bottom rod 21 or the second limiting beam 50, thereby improving the stability of the connection between the elastic member 60 and the bottom rod 21 or the second limiting beam 50.
[0078] It is worth noting that, through simulation experiments, the inventors of this application discovered that, compared to the scheme in which the heat exchanger assembly 10 is rigidly connected to the frame assembly 20, this scheme only fixes the first end of the heat exchanger assembly 10 to the frame assembly 20 in a rigid connection manner, while the second end of the heat exchanger assembly 10 is connected to the frame assembly 20 by an elastic element 60. Under three times the acceleration due to gravity, the maximum stress of the heat exchanger assembly 10 is only slightly increased compared to the previous scheme, for example, from 175MPa to 189MPa. According to the thermal stress simulation analysis results of a single heat exchanger 11, in the improved scheme, the pipe deformation and pipe stress of the first connecting pipe 12 of the heat exchanger 11 are significantly reduced, with the pipe deformation decreasing from 1.36mm to 1.18mm and the steel pipe stress decreasing from 756.42MPa to 229.27MPa.
[0079] In summary, according to the various embodiments of this application, the heat exchanger assembly 10 can be limited in the second direction Y by the first limiting beam 30; the heat exchanger assembly 10 can be limited in the first direction X by the second limiting beam 50; and the heat exchanger assembly 10 can be limited in the third direction Z and the second direction Y by the elastic member 60. This allows the heat exchanger assembly 10 to move within a certain range during transportation or operation, thereby effectively reducing stress concentration at the fixed connection and stress generated by the mutual compression between the heat exchanger plates 11, and effectively avoiding weld fatigue fracture at the first connecting pipe 12 and the second connecting pipe 13. Some embodiments of this application also provide an air conditioning system including the heat exchanger described above. Based on the beneficial effects of this heat exchanger, the operational stability of the air conditioning system can be improved.
[0080] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application and not to limit them; although this application has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications can still be made to the specific implementation of this application or equivalent substitutions can be made to some technical features without departing from the spirit of the technical solutions of this application, and all such modifications and substitutions should be covered within the scope of the technical solutions claimed in this application.
Claims
1. A heat exchanger, characterized in that, include: The heat exchanger assembly (10) includes a plurality of heat exchanger plates (11) arranged side by side in a first direction (X); A frame assembly (20) includes a receiving space formed inside the frame assembly (20), the heat exchanger assembly (10) is disposed within the receiving space, the frame assembly (20) includes a first frame (20a) and a second frame (20b) respectively disposed at both ends of the heat exchanger assembly (10) in a second direction (Y), the second direction (Y) intersecting the first direction (X), the heat exchanger assembly (10) being fixedly connected to the first frame (20a); and A first limiting beam (30) is disposed on the second frame (20b), and the first limiting beam (30) is spaced apart from the heat exchanger assembly (10) in the second direction (Y).
2. The heat exchanger according to claim 1, characterized in that, The second frame (20b) is a U-shaped structure, and the first limiting beam (30) extends along the first direction (X) and is connected to the second frame (20b) to close the opening end of the U-shaped structure.
3. The heat exchanger according to claim 2, characterized in that, The second frame (20b) includes a base rod (21) and two uprights (22) spaced apart in the first direction (X). The base rod (21) extends along the first direction (X), and the uprights (22) extend along a third direction (Z). The third direction (Z) is perpendicular to both the first direction (X) and the second direction (Y). The base rod (21) and the two uprights (22) enclose the outline of the U-shaped structure. The first limiting beam (30) is connected to the two uprights (22) at both ends along the first direction (X).
4. The heat exchanger according to claim 3, characterized in that, It also includes gaskets (40), which are respectively disposed on the two uprights (22). The two ends of the first limiting beam (30) in the first direction (X) are respectively connected to the gaskets (40). The gaskets (40) are used to increase the gap between the first limiting beam (30) and the heat exchange plate assembly (10) in the second direction (Y).
5. The heat exchanger according to any one of claims 1 to 4, characterized in that, It also includes a second limiting beam (50), which is spaced apart from the first limiting beam (30) in a third direction (Z). The third direction (Z) is perpendicular to both the first direction (X) and the second direction (Y). The second limiting beam (50) extends along the first direction (X) and is disposed on the second frame (20b). The second limiting beam (50) is fixedly disposed relative to the second frame (20b).
6. The heat exchanger according to claim 5, characterized in that, The second limiting beam (50) includes a beam body (51) and a plurality of protruding teeth (52) protruding toward the heat exchange plate assembly (10) relative to the beam body (51) in the second direction (Y). The plurality of protruding teeth (52) are spaced apart in the first direction (X). A limiting groove is formed between two adjacent protruding teeth (52). The plurality of heat exchange plates (11) correspond one-to-one with the plurality of limiting grooves. The plurality of heat exchange plates (11) extend into the plurality of limiting grooves respectively, and each heat exchange plate (11) is spaced apart from two adjacent protruding teeth (52) in the first direction (X).
7. The heat exchanger according to claim 5, characterized in that, It also includes a first elastic element group disposed at the second frame (20b), the first elastic element group including a plurality of elastic elements (60), the plurality of elastic elements (60) being disposed one-to-one with the plurality of heat exchange plates (11), and the two ends of the elastic elements (60) being connected to the second limiting beam (50) and the heat exchange plates (11) respectively, the elastic elements (60) being elastically deformable in the second direction (Y) and / or the third direction (Z), the third direction (Z) being perpendicular to both the first direction (X) and the second direction (Y).
8. The heat exchanger according to claim 1, characterized in that, It also includes a second elastic element group disposed at the second frame (20b), the second elastic element group including a plurality of elastic elements (60), the plurality of elastic elements (60) being disposed one-to-one with the plurality of heat exchange plates (11), and the two ends of the elastic elements (60) being connected to the frame assembly (20) and the heat exchange plates (11) respectively, the elastic elements (60) being elastically deformable in the second direction (Y) and / or the third direction (Z), the third direction (Z) being perpendicular to both the first direction (X) and the second direction (Y).
9. The heat exchanger according to claim 7 or 8, characterized in that, The elastic element (60) includes a first body (61) and a second body (62) disposed on the first body (61). The first body (61) and the heat exchange plate (11) are spaced apart in the second direction (Y). The first body (61) is fixedly disposed relative to the frame assembly (20). The second body (62) extends toward the heat exchange plate (11) and is connected to the heat exchange plate (11). The second body (62) can deflect relative to the first body (61) under the action of the heat exchange plate (11).
10. The heat exchanger according to claim 9, characterized in that, The elastic element (60) further includes a third body (63) disposed at the end of the second body (62) connected to the heat exchange plate (11), the third body (63) extending along the third direction (Z) and being attached to the heat exchange plate (11).
11. An air conditioning system, characterized in that, Includes the heat exchanger as described in any one of claims 1 to 10.