Fin structure for heat exchanger, optimization method, heat exchanger and air conditioner

Abstract

The invention provides a fin structure for a heat exchanger, an optimization method, the heat exchanger and an air conditioner. The fin structure comprises a base plate, a windowing area and a non-windowing area. A plurality of through holes which are arranged at intervals are formed in the substrate along a first direction; the windowing areas and the through holes are arranged in a staggered mode in the first direction, and corrugated shutter fins are constructed in the windowing areas. The two non-windowing areas are arranged on the two sides of the windowing area in the second direction; wherein the first direction and the second direction are perpendicular to each other. The windowing areas and the non-windowing areas are arranged on the base plate, the non-windowing areas are located on the two sides of the windowing areas and are not provided with fins, the non-windowing areas are used for sharing external impact force, the impact force is prevented from directly acting on the fins, fin reversing is avoided, and the overall strength of the fins is improved. Corrugated shutter fins are constructed in the windowing area and used for enhancing the heat exchange effect, and the fins with the small area are more convenient to reverse and repair.

Description

Technical Field

[0001] The present invention relates to the technical field of heat exchangers, and in particular to a fin structure for a heat exchanger, an optimization method, a heat exchanger and an air conditioner. Background Art

[0002] Fin heat exchanger is a type of heat exchanger commonly used in the automotive, aerospace, refrigeration and air conditioning, power machinery and other industrial fields. At present, the commonly used fin types on the market include corrugated fins, bridge fins and louver fins, among which louver fins can be regarded as a combination of corrugated fins and bridge fins. When the fluid flows through the louver fins, the louvers on the fins block the flow of air, forming a thinner fluid boundary layer. Since the fluid boundary layer is thin, its thermal resistance is also small, which can enhance the heat transfer performance of the heat exchanger.

[0003] In the prior art, through holes are opened on the substrate to pass the heat exchange pipes, and the part without through holes is constructed as louvered fins. Although this construction method enables the heat exchanger to have a better heat exchange effect, during transportation and installation, the external force directly acts on the fins, which is very likely to cause the fins to collapse, and a large area of ​​collapsed fins makes repair more difficult. Summary of the invention

[0004] The present invention provides a fin structure for a heat exchanger, an optimization method, a heat exchanger and an air conditioner, which are used to solve the defect of the louver fins in the prior art that they are easy to fall over, and achieve the technical effect of enhancing the strength of the fins and facilitating repair after falling over.

[0005] In a first aspect, the present invention provides a fin structure for a heat exchanger, comprising: a substrate, a window area and a non-window area;

[0006] The substrate is provided with a plurality of through holes arranged at intervals along a first direction;

[0007] The window areas and the through holes are arranged alternately along the first direction, and corrugated louver fins are constructed in the window areas;

[0008] The two non-windowing areas are arranged on both sides of the windowing area along the second direction;

[0009] The first direction and the second direction are perpendicular to each other.

[0010] According to the fin structure for a heat exchanger provided by the present invention, the window area includes: a first window area and a second window area;

[0011] The first window area is located on both sides of the second window area along the second direction;

[0012] The second window opening area is located on both sides of the through hole along the first direction;

[0013] The total area of ​​the first window area and the non-window area is the same as the area of ​​the second window area.

[0014] The fin structure for a heat exchanger provided according to the present invention further includes: reinforcing ribs, wherein the reinforcing ribs are arranged at intervals on both sides of the through hole in the second direction, and the surfaces of the reinforcing ribs protrude from the surfaces of the adjacent window first areas.

[0015] According to the fin structure for a heat exchanger provided by the present invention, the length of the non-windowed area in the second direction is between 1.5 mm and 2.5 mm.

[0016] In a second aspect, the present invention further provides a method for optimizing a fin structure for a heat exchanger, which uses the fin structure for a heat exchanger as described above, and comprises:

[0017] Construct a spatial model of the substrate;

[0018] Loading louver fin features and through-hole features on the spatial model;

[0019] Loading analysis features on the spatial model, and performing simulation analysis based on the analysis features;

[0020] The spatial parameters of the fin features are optimized based on the simulation results of the simulation analysis.

[0021] The method for optimizing the fin structure of a heat exchanger provided by the present invention further includes:

[0022] Loading a stiffener feature in the window opening area;

[0023] Loading load characteristics on the spatial model, and performing simulation analysis based on the load characteristics;

[0024] The spatial parameters of the stiffener features are optimized based on the simulation results of the simulation analysis.

[0025] According to the optimization method for the fin structure of a heat exchanger provided by the present invention, the step of loading the load characteristics on the space model and performing simulation analysis based on the load characteristics specifically includes:

[0026] adjusting the slope of the reinforcing rib perpendicular to the surface of the substrate;

[0027] applying a load feature to the spatial model;

[0028] Acquire a first torque characteristic of the louver fin and a second torque characteristic of the reinforcing rib;

[0029] It is determined that the first torque characteristic satisfies the set fin torque value, and the second torque characteristic satisfies the preset rib torque value, and then a simulation result of the simulation analysis is generated.

[0030] According to the optimization method for the fin structure of a heat exchanger provided by the present invention, the step of loading the analysis feature on the space model and performing simulation analysis according to the analysis feature specifically includes:

[0031] Loading analysis features in the spatial model, the analysis features including at least a load parameter and a heat parameter;

[0032] Acquiring an instantaneous torque of the spatial model, and generating a strength parameter according to the instantaneous torque;

[0033] Acquiring a heat exchange ratio of the space model, and generating heat exchange parameters according to the heat exchange ratio;

[0034] Determining that the strength parameter satisfies the set strength parameter, and determining that the heat exchange parameter satisfies the set heat exchange parameter, then generating simulation data for simulation analysis;

[0035] The area of ​​the louver fins is adjusted, the above steps are repeated, and simulation results are generated based on all the simulation data.

[0036] According to the optimization method for the fin structure of a heat exchanger provided by the present invention, the step of optimizing the spatial parameters of the fin characteristics based on the simulation results of the simulation analysis specifically includes:

[0037] generating a strength variation trend and a heat transfer variation trend according to the simulation results of the simulation analysis;

[0038] It is determined that the intensity variation trend satisfies a preset intensity variation condition, and it is determined that the heat exchange variation trend satisfies a preset heat exchange variation condition, and then the spatial parameters of the fin characteristics are generated.

[0039] In a third aspect, the present invention further provides a heat exchanger, comprising the fin structure for a heat exchanger as described above, or the optimization method for the fin structure for a heat exchanger as described above is used when manufacturing the fin structure of a heat exchanger.

[0040] In a fourth aspect, the present invention further provides an air conditioner, comprising the heat exchanger as described above.

[0041] The fin structure for a heat exchanger provided by the present invention provides a window area and a non-window area on a substrate, wherein the non-window area is located on both sides of the window area and has no fins, so as to share the external impact force, prevent the impact force from directly acting on the fins, and prevent the fins from being reversed, thereby improving the overall strength of the fins. Corrugated louver fins are constructed in the window area to enhance the heat exchange effect, and the fins with a smaller area are also more convenient for reverse repair.

[0042] Furthermore, in the optimization method for the fin structure of a heat exchanger provided by the present invention, since the optimization method for the fin structure of a heat exchanger as described above is applied, it also has the advantages as described above.

[0043] Furthermore, in the heat exchanger provided by the present invention, since it has the fin structure for the heat exchanger as described above, or performs the optimization method for the fin structure for the heat exchanger as described above, it also has the advantages as described above.

[0044] Furthermore, in the air conditioner provided by the present invention, since it is provided with the heat exchanger as described above, it also has the advantages as described above. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0046] Figure 1 It is one of the schematic diagrams of the fin structure for a heat exchanger provided by the present invention;

[0047] Figure 2 This is the second schematic diagram of the fin structure for a heat exchanger provided by the present invention;

[0048] Figure 3 It is a schematic flow chart of a method for optimizing the fin structure of a heat exchanger provided by the present invention;

[0049] Figure 4 is a flow chart of step S3 of the method for optimizing the fin structure of a heat exchanger provided by the present invention;

[0050] Figure 5 It is a chart of the relationship between window opening ratio, heat exchange parameters and strength parameters provided by the present invention;

[0051] Figure 6 It is a schematic diagram of an embodiment of the method for optimizing the fin structure of a heat exchanger provided by the present invention.

[0052] Reference numerals:

[0053] 10: substrate; 102: through hole; 104: window area; 1042: first window area; 1044: second window area; 106: non-window area; 12: reinforcing rib. DETAILED DESCRIPTION

[0054] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the drawings of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0055] In the description of the embodiments of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present invention can be understood according to specific circumstances.

[0056] In the description of the embodiments of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limitations on the embodiments of the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0057] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the embodiment of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0058] Combine the following Figures 1 to 6 The embodiments of the present invention are described in further detail. The following examples are used to illustrate the present invention but are not intended to limit the scope of the present invention.

[0059] First, as Figure 1 and Figure 2As shown, the present invention provides a fin structure for a heat exchanger, comprising: a substrate 10, a window area 104 and a non-window area 106. The substrate 10 is a rectangular metal plate. According to actual needs, a plurality of through holes 102 are provided on the substrate 10, and the through holes 102 are spaced apart from each other, and the centers of the through holes 102 are located on the same straight line, and the through holes 102 are used to insert heat exchange tubes. In other words, a plurality of through holes 102 are provided on the substrate 10 along a first direction, and the area other than the through holes 102 provided on the substrate 10 is used as the window area 104 and the non-window area 106. Two non-window areas 106 are located on both sides of the substrate 10, and the window area 104 is located between the non-window areas 106. Specifically, the window areas 104 and the through holes 102 are staggered along the first direction, and a corrugated louver fin is constructed in the window area 104. Two non-window areas 106 are provided on both sides of the window area 104 along the second direction. The center line of the through hole 102 is used as an axis, and the structures on both sides of the axis are completely symmetrical. The extending direction of the long side of the substrate 10 is used as the first direction, and the extending direction of the short side of the substrate 10 is used as the second direction. The first direction and the second direction are perpendicular to each other.

[0060] In the above-described embodiment, the window area 104 includes: a first window area 1042 and a second window area 1044. The second window area 1044 is located between adjacent through holes 102, and the first window area 1042 is located between the second window area 1044 and the non-window area 106. That is, the first window area 1042 is located on both sides of the second window area 1044 along the second direction, and the second window area 1044 is located on both sides of the through hole 102 along the first direction. Optionally, the total area of ​​the first window area 1042 and the non-window area 106 is the same as the area of ​​the second window area 1044. Optionally, the length of the non-window area 106 in the second direction is between 1.5 mm and 2.5 mm.

[0061] Further, the total area of ​​the second window area 1044 is greater than the total area of ​​the first window area 1042. Optionally, the arrangement density, size, and orientation of the blinds in the second window area 1044 are the same. Since the total area of ​​the second window area 1044 is greater than the total area of ​​the first window area 1042, the number of blinds arranged in the second window area 1044 is greater than the number of blinds arranged in the first window area 1042. Among them, the window area 104 is provided with fins, and the fins are composed of a plurality of blinds.

[0062] Also optionally, one or more of the setting density, size, and orientation of the blinds in the first window area 1042 are different from those of the blinds in the second window area 1044.

[0063] In an optional embodiment, the louvers of the second window area 1044 face the direction away from the through hole 104, and the louvers of the first window area 1042 face the direction close to the through hole 104. That is to say, each louver of the second window area 1044 is connected to the substrate 10 near the through hole 104 and disconnected from the substrate 10 far from the through hole 104; each louver of the first window area 1042 is disconnected from the substrate 10 near the through hole 104 and connected to the substrate 10 far from the through hole 104. When an external force impacts the heat exchanger, it first passes through the non-window area 106 and then to the first window area 1042. Since the louvers on the first window area 1042 face the same direction as the external force, the back of the louvers receives the external force and appropriately disperses the external force to avoid the external force acting on the front of the louvers and breaking the louvers.

[0064] In another optional embodiment, the size of each louver on the first window area 1042 is larger than the size of each louver on the second window area 1044. The directions of the external force are sequentially the non-window area 106, the first window area 1042, the second window area 1044 and the heat exchange pipe in the through hole 104. Since the external force will gradually weaken, the force borne by the first window area 1042 is greater than the force borne by the second window area 1044. A larger area of ​​the louver plane can share a larger external force, and the size of the louver in the first window area 1042 is set to be larger than the size of the louver in the second window area 1044.

[0065] like Figure 2 As shown, in an optional embodiment provided by the present invention, the fin structure for the heat exchanger further includes: reinforcing ribs 12. In the second direction, the reinforcing ribs 12 are arranged on both sides of the through hole 102. The reinforcing ribs 12 are in a cubic structure, and the surface of the reinforcing ribs 12 parallel to the substrate 10 protrudes from the surface of the louver fins to bear and disperse the external force perpendicular to the direction of the substrate 10. The surface of the reinforcing ribs 12 away from the through hole 102 protrudes from the first window area 1042, and is located in the non-window area 106 to bear and disperse the external force parallel to the direction of the substrate 10. In the process of transporting the heat exchanger, the external collision parallel to the substrate 10 will first contact the non-window area 106 and be partially eliminated, and then contact the reinforcing ribs 12 to be eliminated again. The force after elimination is difficult to damage the fins on the window area 104, which can effectively avoid the occurrence of flipping. The external collision perpendicular to the substrate 10 will first contact the reinforcing ribs 12 and be partially eliminated, and then contact the fins, thereby protecting the fins from damage.

[0066] Furthermore, each surface of the reinforcing rib 12 is constructed as an inclined surface to disperse the force. Specifically, the surface away from the substrate 10 is constructed as an inclined surface that is higher near the through hole 102 and lower away from the through hole 102; the side surface between the surface and the substrate 10 is constructed as an inclined surface starting from the surface and close to the substrate 10 and away from the surface.

[0067] Second, as Figure 3 As shown, the present invention also provides a method for optimizing the fin structure of a heat exchanger, which is applied to the fin structure of the heat exchanger as described above. The method comprises:

[0068] Step S1 , constructing a spatial model of the substrate 10 .

[0069] Step S2, loading the louver fin features and the through hole features on the space model.

[0070] Step S3, loading analysis features on the space model, and performing simulation analysis based on the analysis features.

[0071] Step S4, optimizing the spatial parameters of the fin characteristics based on the simulation results of the simulation analysis.

[0072] Specifically, the length, width, and height of the substrate 10 are input, and the spatial model of the substrate 10 is constructed based on the length, width, and height of the substrate 10. The number and diameter of the through holes 102 are input, and the through hole features are loaded on the spatial model based on the number and diameter of the through holes 102. The through holes 102 are set on a straight line by default, and the spacing between adjacent through holes 102 is the same. Starting from the long sides of the substrate 10 on both sides, the area extending into the substrate 10 ends at 2 mm, and this area is used as the non-window area 106. The area on the substrate 10 excluding the through holes 102 and the non-window area 106 is the window area 104, and the preset louver fin features are loaded in the window area 104. The analysis features are loaded on the spatial model, and simulation analysis is performed based on the analysis features. The spatial parameters of the fin features are optimized based on the simulation results of the simulation analysis.

[0073] like Figure 4 As shown, in the above embodiment, step S3 specifically includes:

[0074] Step S3.1, loading analysis features in the space model, wherein the analysis features at least include load parameters and heat parameters.

[0075] Step S3.2, obtaining the instantaneous torque of the spatial model and generating strength parameters according to the instantaneous torque.

[0076] Step S3.3, obtaining the heat exchange ratio of the space model, and generating heat exchange parameters according to the heat exchange ratio.

[0077] Step S3.4, determining that the strength parameters meet the set strength parameters, and determining that the heat exchange parameters meet the set heat exchange parameters, then generating simulation data for simulation analysis.

[0078] Step S3.5, adjusting the area of ​​the louver fins. Repeat the above steps and generate simulation results based on all simulation data.

[0079] The window area 104 includes: a first window area 1042 and a second window area 1044. The first window area 1042 is located on both sides of the second window area 1044 along the second direction, and the second window area 1044 is located on both sides of the through hole 102 along the first direction. By default, fins are provided in both the first window area 1042 and the second window area 1044.

[0080] Optionally, when adjusting the area of ​​the louver fins, the area of ​​the fins in the second window area 1044 remains unchanged, and only the area of ​​the fins in the first window area 1042 is changed. When the fin area is increased, the fins extend toward the non-window area 106, that is, an additional fin is provided on the non-window area 106; when the fin area is reduced, the position of the first window area 1042 close to the non-window area 106 is restored from the fin to a plane, that is, the area of ​​the non-window area 106 is increased toward the inside of the substrate 10. It can be understood that adjusting the area of ​​the louver fins means the mutual conversion between the first window area 1042 and the non-window area 106.

[0081] Also optionally, when adjusting the area of ​​the louver fins, the fin area in the second window area 1044 and the fin area in the first window area 1042 are changed simultaneously. Specifically, when adjusting the area of ​​the louver fins, the fin area in the first window area 1042 close to the non-window area 106 is adjusted, and the fin area in the second window area 1044 between adjacent through holes 102 is adjusted.

[0082] Load parameters are loaded on the spatial model to obtain the instantaneous torque of the load parameters acting on the window area 104, wherein a portion of the load parameters is eliminated by the non-window area 106. The instantaneous torque is substituted into the calculation formula to determine the deformation of the fin after the force is applied.

[0083] Calculation formula:

[0084] ρ: deformation of the fin after being subjected to force;

[0085] M: instant torque;

[0086] E: Elastic modulus of the fin, a constant determined by the material of the fin;

[0087] I: The cross-sectional moment of inertia of the fin, a variable determined by the type of fin.

[0088] The strength of the fin is the inverse of the amount of deformation of the fin after being subjected to force, that is, the greater the amount of deformation of the fin, the smaller the strength of the fin. The strength parameter is generated according to the amount of deformation of the fin after being subjected to force.

[0089] The heat parameters are loaded on the space model, and the heat is transferred outward from the through hole 102. The heat transfer in the window area 104 is greater than the heat transfer in the non-window area 106. The heat transfer ratio of the space model is obtained, and the heat transfer parameters are generated according to the heat transfer ratio.

[0090] If the strength parameters meet the set strength parameters, and it is determined that the heat exchange parameters meet the set heat exchange parameters, simulation data for simulation analysis is generated; if the strength parameters do not meet the set strength parameters, and / or the heat exchange parameters do not meet the set heat exchange parameters, the set of parameters is discarded.

[0091] Repeat the above steps to generate simulation results for all parameters that meet the set parameter requirements.

[0092] In an optional embodiment provided by the present invention, step S4 specifically includes:

[0093] Step S4.1, generating strength change trend and heat transfer change trend according to the simulation results of the simulation analysis.

[0094] Step S4.2, determining that the intensity variation trend satisfies a preset intensity variation condition, and determining that the heat exchange variation trend satisfies a preset heat exchange variation condition, then generating spatial parameters of the fin characteristics.

[0095] like Figure 5 As shown, the area of ​​the louver fins is adjusted, that is, the area of ​​the first window area 1042 is adjusted, and the adjusted space model is simulated and analyzed to obtain the corresponding heat exchange parameters and intensity parameters. The window opening ratio, heat exchange parameters and intensity parameters are expressed in the form of a chart, and the intensity change trend and heat exchange change trend can be intuitively seen from the chart. Among them, the window opening ratio refers to the ratio of the area of ​​the first window area 1042 to the area of ​​the second window area 1044.

[0096] Continue to see Figure 5, it can be seen that the area of ​​the first window area 1042 is proportional to the heat exchange rate, and the area of ​​the first window area 1042 is inversely proportional to the fin strength. When the window ratio is between 100% and 60%, the heat exchange rate decreases slowly, while the strength increases quickly. Therefore, when the window ratio is set at 60-100%, both higher heat exchange rate and higher strength can be guaranteed. However, in order to facilitate the repair of the flip sheet, it is recommended that the non-window area 106 be controlled between 1.5mm and 2.5mm, so the window ratio should not be too large. In summary, it is recommended that the window ratio be between 60% and 75%, that is, when the first window area 1042 accounts for 60% to 75% of the second window area 1044, a higher heat exchange rate and higher strength can be obtained. The louver fin feature initially loaded on the spatial model of the present invention includes a louver fin with the window ratio controlled at 75%.

[0097] like Figure 6 As shown, in an optional embodiment provided by the present invention, the method for optimizing the fin structure of the heat exchanger further includes the following steps:

[0098] Step S5, loading the reinforcement rib feature in the window area 104.

[0099] Step S6, loading the load characteristics into the space model, and performing simulation analysis based on the load characteristics.

[0100] Step S7, optimizing the spatial parameters of the reinforcement rib features based on the simulation results of the simulation analysis.

[0101] According to the diameter of the through hole 102, the size of the rib 12 is determined according to the set ratio, and the rib feature is loaded in the window area 104. Load characteristics of instantaneous impact, collision and long-term pressing are loaded on the spatial model to simulate and analyze the stress conditions of the fins during transportation and installation. If after the simulation, it is found that the fins are flipped, the position where the flip occurs and the stress in the flip area are obtained, and the size of the rib 12 at the corresponding position is increased; if after the simulation, the fins are not flipped, the rib feature is determined to be the spatial parameter of the rib feature. Repeat step S7 after increasing the size of the rib 12. If no flipping occurs after increasing the size of the rib 12, the rib feature is determined to be the spatial parameter of the rib feature.

[0102] Furthermore, in order to prevent the reinforcing rib 12 from being damaged, it is necessary to enhance the strength of the reinforcing rib 12. Optionally, the present invention disperses the force on the reinforcing rib 12 by configuring the surface of the reinforcing rib 12 as an inclined surface. Specifically, step S6 is divided into the following steps:

[0103] Step S6.1, adjusting the slope of the reinforcing rib 12 perpendicular to the surface of the substrate 10.

[0104] Step S6.2, loading load features on the space model.

[0105] Step S6.3, obtaining the first torque characteristic of the louver fin and the second torque characteristic of the reinforcing rib 12.

[0106] Step S6.4, determining that the first torque characteristic satisfies the set fin torque value, and the second torque characteristic of the stiffener 12 satisfies the preset stiffener torque value, then generating a simulation result of the simulation analysis.

[0107] In a third aspect, the present invention further provides a heat exchanger, comprising the fin structure for a heat exchanger as described above, or the optimization method for the fin structure for a heat exchanger as described above is used when manufacturing the fin structure of a heat exchanger.

[0108] In a fourth aspect, the present invention further provides an air conditioner, comprising the heat exchanger as described above.

[0109] The present invention provides a window area 104 and a non-window area 106 on the substrate 10. The non-window area 106 is located on both sides of the window area 104 and is not provided with fins to share the external impact force. On this basis, reinforcing ribs 12 are also provided on both sides of the through hole 102. The reinforcing ribs 12 bear most of the external impact force, avoiding the impact force directly acting on the fins, avoiding the occurrence of flipping, and improving the overall strength of the fins. Corrugated louver fins are constructed in the window area 104 to enhance the heat exchange effect, and the smaller area of ​​the fins is also easier to repair the flipping.

[0110] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A fin structure for a heat exchanger, characterized in that: include: A substrate (10), a window area (104) and a non-window area (106); The substrate (10) is provided with a plurality of through holes (102) arranged at intervals along a first direction; The window opening areas (104) and the through holes (102) are arranged alternately along the first direction, and corrugated louver fins are constructed in the window opening areas (104); The two non-windowed areas (106) are arranged on both sides of the windowed area (104) along the second direction; The first direction and the second direction are perpendicular to each other.

2. The fin structure for a heat exchanger according to claim 1, characterized in that: The window opening area (104) comprises: a first window opening area (1042) and a second window opening area (1044); The first window area (1042) is located on both sides of the second window area (1044) along the second direction; The second window opening area (1044) is located on both sides of the through hole (102) along the first direction; The total area of ​​the first window area (1042) and the non-window area (106) is the same as the area of ​​the second window area (1044).

3. The fin structure for a heat exchanger according to claim 2, characterized in that: Also includes: A reinforcing rib (12), wherein the reinforcing rib (12) is arranged at intervals on both sides of the through hole (102) in the second direction, and the surface of the reinforcing rib (12) protrudes from the surface of the adjacent window first area (1042).

4. The fin structure for a heat exchanger according to any one of claims 1 to 3, characterized in that: The length of the non-windowed area (106) in the second direction is between 1.5 mm and 2.5 mm.

5. A method for optimizing the fin structure of a heat exchanger, characterized in that: The fin structure for a heat exchanger according to any one of claims 1 to 4 comprises: constructing a spatial model of the substrate (10); Loading louver fin features and through-hole features on the spatial model; Loading analysis features on the spatial model, and performing simulation analysis based on the analysis features; The spatial parameters of the fin features are optimized based on the simulation results of the simulation analysis.

6. The method for optimizing the fin structure of a heat exchanger according to claim 5, characterized in that: Also includes: Loading a reinforcing rib feature in the window opening area (104); Loading load characteristics on the spatial model, and performing simulation analysis based on the load characteristics; The spatial parameters of the stiffener features are optimized based on the simulation results of the simulation analysis.

7. The method for optimizing the fin structure of a heat exchanger according to claim 6, characterized in that: The step of loading the load characteristics on the space model and performing simulation analysis based on the load characteristics specifically includes: adjusting the inclination of the reinforcing rib (12) perpendicular to the surface of the substrate (10); applying a load feature to the spatial model; Obtaining a first torque characteristic of the louvered fin and a second torque characteristic of the reinforcing rib (12); It is determined that the first torque characteristic satisfies the set fin torque value, and the second torque characteristic satisfies the preset rib torque value, and then a simulation result of the simulation analysis is generated.

8. The method for optimizing the fin structure of a heat exchanger according to claim 5, characterized in that: The step of loading the analysis features on the spatial model and performing simulation analysis according to the analysis features specifically includes: Loading analysis features in the spatial model, the analysis features including at least a load parameter and a heat parameter; Acquire the instantaneous torque of the spatial model, and generate a strength parameter according to the instantaneous torque; Acquiring a heat exchange ratio of the space model, and generating heat exchange parameters according to the heat exchange ratio; Determining that the strength parameter satisfies the set strength parameter, and determining that the heat exchange parameter satisfies the set heat exchange parameter, then generating simulation data for simulation analysis; The area of ​​the louver fins is adjusted, the above steps are repeated, and simulation results are generated based on all the simulation data.

9. The method for optimizing the fin structure of a heat exchanger according to any one of claims 5 to 8, characterized in that: The step of optimizing the spatial parameters of the fin features based on the simulation results of the simulation analysis specifically includes: generating a strength variation trend and a heat transfer variation trend according to the simulation results of the simulation analysis; It is determined that the intensity variation trend satisfies a preset intensity variation condition, and it is determined that the heat exchange variation trend satisfies a preset heat exchange variation condition, and then the spatial parameters of the fin characteristics are generated.

10. A heat exchanger, characterized in that: It comprises the fin structure for a heat exchanger as described in any one of claims 1 to 4, or the optimization method for the fin structure for a heat exchanger as described in any one of claims 5 to 9 is used when manufacturing the fin structure of the heat exchanger.

11. An air conditioner, characterized in that: Comprising the heat exchanger as claimed in claim 10.

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