Fin unit, heat exchange fin and heat exchanger
By designing a baffle structure with unequal included angles in the fin unit, the problem of high fluid flow resistance is solved, achieving more efficient heat exchange performance and stronger turbulence capability.
Patent Information
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- ZHEJIANG YINLUN THERMAL MANAGEMENT SYST OF NEW ENERGY CO LTD
- Filing Date
- 2025-09-23
- Publication Date
- 2026-07-02
AI Technical Summary
The existing staggered fins have an unreasonable single-unit structure, resulting in high fluid flow resistance and reduced heat transfer performance.
When designing the fin unit, the first included angle is not equal to the second included angle, or the third included angle is not equal to the fourth included angle, or both the first included angle and the third included angle are not equal to the fourth included angle, so that the tilt angle of the spoiler is smaller, the fluid has a stronger flow on the spoiler with a smaller tilt angle, and strongly impacts the top and bottom of the fin unit.
It improves heat exchange efficiency, reduces fluid flow resistance, enhances the turbulence capability of the finned unit, and improves heat exchange capacity.
Smart Images
Figure CN2025123314_02072026_PF_FP_ABST
Abstract
Description
A finned unit, heat exchange fins, and heat exchanger
[0001] Cross-reference of related applications
[0002] This disclosure claims priority to Chinese Patent Application No. 202411911422.4, filed on December 24, 2024, entitled “A Finned Unit, Heat Exchange Fin and Heat Exchanger”, the entire contents of which are incorporated herein by reference. Technical Field
[0003] This disclosure relates to the field of heat exchange technology, and more specifically, to a finned unit, heat exchange fins, and heat exchanger. Background Technology
[0004] Heat exchangers, due to their compact structure and high heat exchange efficiency, are now widely used in air separation equipment, petrochemicals, refrigeration and cryogenics, automotive and aerospace industries. The most crucial component of a heat exchanger is the fin, such as staggered fins.
[0005] However, the individual unit structure of the existing staggered fins is unreasonable, with two adjacent teeth having the same structure. When fluid flows in this type of fin, it will be subject to greater flow resistance, thereby reducing the heat exchanger's heat exchange performance.
[0006] Public content
[0007] This disclosure provides a finned unit, heat exchange fins, and a heat exchanger that enable fluid to flow more strongly on a baffle plate with a smaller inclination angle, thereby allowing the fluid to more strongly impact the top and bottom of the finned unit and thus improving heat exchange efficiency.
[0008] The embodiments of this disclosure can be implemented as follows:
[0009] In a first aspect, embodiments of this disclosure provide a finned unit, including a first base plate, a second base plate, a first spoiler, a second spoiler, a third spoiler, and a fourth spoiler;
[0010] The first base plate, the first spoiler, the second spoiler, and the second base plate are connected in sequence, and the first spoiler and the second spoiler are set at an angle.
[0011] The first base plate, the third spoiler, the fourth spoiler and the second base plate are connected in sequence, and the third spoiler and the fourth spoiler are set at an angle;
[0012] Define a first plane and a second plane, with the first base plate and the second base plate located on the second plane, the first plane and the second plane being perpendicular, and the projection of the second spoiler and the third spoiler onto the first plane being intersected;
[0013] Wherein, the angle between the first spoiler and the second plane is the first included angle, the angle between the second spoiler and the second plane is the second included angle, the angle between the third spoiler and the second plane is the third included angle, and the angle between the fourth spoiler and the second plane is the fourth included angle.
[0014] Wherein, the first included angle is greater than or less than the second included angle; and / or, the third included angle is greater than or less than the fourth included angle.
[0015] Optionally, the first included angle is greater than or less than the fourth included angle.
[0016] Optionally, the second included angle is greater than or less than the third included angle.
[0017] Optionally, the first included angle is not equal to the fourth included angle.
[0018] Optionally, the width of the first spoiler is a first width, and the width of the fourth spoiler is a second width, wherein the first width is greater than or less than the second width;
[0019] And / or, the width of the second spoiler is a third width, the width of the third spoiler is a fourth width, and the third width is greater than or less than the fourth width.
[0020] Optionally, the fin unit further includes a fifth spoiler and a sixth spoiler. The two ends of the fifth spoiler are respectively connected to the end of the first spoiler away from the first base plate and the end of the second spoiler away from the second base plate. The two ends of the sixth spoiler are respectively connected to the end of the third spoiler away from the first base plate and the end of the fourth spoiler away from the second base plate.
[0021] Optionally, the fifth spoiler and the sixth spoiler are located on a third plane parallel to the second plane. The distance between the third plane and the second plane is set to Fh, the farthest distance between the first base plate and the second base plate is set to Fp, the first included angle is set to θ1, and the second included angle is set to θ2. Then the following formula is satisfied: arctan(Fh / Fp)<θ2<θ1<90°.
[0022] Secondly, this disclosure provides a heat exchange fin, including a fin unit as described in any of the foregoing embodiments, wherein a plurality of the fin units are connected via a first base plate or a second base plate.
[0023] Optionally, a first direction and a second direction are defined, the first direction and the second direction are perpendicular, the second direction is parallel to the main flow direction of the fluid, and the number of fin units is multiple, and the multiple fin units are arranged in an array along the first direction and the second direction;
[0024] Furthermore, along the first direction, the first base plate of any one of the fin units is connected to the second base plate of the adjacent fin unit;
[0025] Along the second direction, the first base plate of any one of the fin units is connected to the first base plate of the adjacent fin unit, and the second base plate of any one of the fin units is connected to the second base plate of the adjacent fin unit.
[0026] Optionally, the heat exchange fins further include multiple connecting units, and the number of fin units is multiple;
[0027] Along the first direction, the connecting unit is disposed between two adjacent fin units, and the two adjacent fin units are inverted relative to each other;
[0028] Along the second direction, the first base plate of any one of the fin units is connected to the first base plate of another adjacent fin unit, and the second base plate of any one of the fin units is connected to the second base plate of another adjacent fin unit;
[0029] A first direction and a second direction are defined, the first direction and the second direction are perpendicular, the second direction is parallel to the main flow direction of the fluid, and the plurality of fin units and the plurality of connecting units are arranged in an array along the first direction and the second direction.
[0030] Optionally, the connecting unit includes a first connecting plate, a second connecting plate, a third connecting plate, and a fourth connecting plate;
[0031] The first connecting plate and the fourth connecting plate are arranged in parallel. The two ends of the second connecting plate are connected to the first connecting plate and the fourth connecting plate, respectively. The two ends of the third connecting plate are connected to the first connecting plate and the fourth connecting plate, respectively. The first connecting plate is connected to the first bottom plate of the adjacent fin unit, and the fourth connecting plate is connected to the second bottom plate of another adjacent fin unit.
[0032] Optionally, the second connecting plate and the third connecting plate are arranged in parallel.
[0033] Secondly, embodiments of this disclosure provide a heat exchanger including heat exchange fins as described in any of the foregoing embodiments. The heat exchanger also includes a plurality of heat exchange plates, which are stacked and arranged in layers, with the heat exchange fins disposed between at least one group of adjacent heat exchange plates.
[0034] The beneficial effects of the finned unit, heat exchange fins, and heat exchanger provided in this disclosure include: by making the first included angle not equal to the second included angle, or making the third included angle not equal to the fourth included angle, or simultaneously making the first included angle not equal to the second included angle and the third included angle not equal to the fourth included angle, at least one of the first, second, third, and fourth baffles has a smaller inclination angle relative to the other baffles. Therefore, during the flow of fluid in the heat exchange fins, the fluid can have a stronger flow on the baffle with a smaller inclination angle, thus enabling the fluid to more strongly impact the top and bottom of the finned unit, thereby improving the heat exchange efficiency. Attached Figure Description
[0035] To more clearly illustrate the technical solutions of the embodiments of this disclosure, the accompanying drawings used in the embodiments will be briefly described below. It should be understood that the following drawings only show some embodiments of this disclosure and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.
[0036] Figure 1 is a schematic diagram of the structure of the heat exchange fins provided in the embodiment of this disclosure;
[0037] Figure 2 is one of the structural schematic diagrams of the finned unit provided in the embodiments of this disclosure;
[0038] Figure 3 is a second schematic diagram of the structure of the finned unit provided in the embodiment of this disclosure;
[0039] Figure 4 is a schematic diagram of the conventional fin operating condition provided in the embodiments of this disclosure;
[0040] Figure 5 is a schematic diagram of the heat exchange fins operating conditions provided in the embodiments of this disclosure;
[0041] Figure 6 is a schematic diagram of the operating conditions of conventional fins and heat exchange fins provided in the embodiments of this disclosure;
[0042] Figure 7 is one of the structural schematic diagrams of the finned unit provided in the embodiments of this disclosure;
[0043] Figure 8 is a second schematic diagram of the structure of the finned unit provided in the embodiment of this disclosure;
[0044] Figure 9 is a schematic diagram of the structure of the finned unit provided in the embodiment of this disclosure;
[0045] Figure 10 is one of the structural schematic diagrams of the heat exchange fins provided in the embodiments of this disclosure;
[0046] Figure 11 is a second schematic diagram of the structure of the heat exchange fins provided in the embodiments of this disclosure.
[0047] Icons: 10 - Heat exchange fins; 100 - Fin unit; 110 - First base plate; 120 - Second base plate; 130 - First spoiler; 140 - Second spoiler; 150 - Third spoiler; 160 - Fourth spoiler; 170 - Fifth spoiler; 180 - Sixth spoiler; 200 - Connecting unit; 210 - First connecting plate; 220 - Second connecting plate; 230 - Third connecting plate; 240 - Fourth connecting plate. Detailed Implementation
[0048] To make the objectives, technical solutions, and advantages of the embodiments of this disclosure clearer, the technical solutions of the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this disclosure, and not all embodiments. The components of the embodiments of this disclosure described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.
[0049] Therefore, the following detailed description of the embodiments of this disclosure provided in the accompanying drawings is not intended to limit the scope of the claimed disclosure, but merely to illustrate selected embodiments of the disclosure. All other embodiments obtained by those skilled in the art based on the embodiments of this disclosure without inventive effort are within the scope of protection of this disclosure.
[0050] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.
[0051] In the description of this disclosure, it should be noted that if terms such as "upper," "lower," "inner," or "outer" are used to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product of the invention is usually placed during use, they are only for the convenience of describing this disclosure and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this disclosure.
[0052] Furthermore, the terms "first" and "second" are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.
[0053] It should be noted that, where there is no conflict, the features in the embodiments of this disclosure can be combined with each other.
[0054] Plate-fin heat exchangers, due to their compact structure and high heat exchange efficiency, are now widely used in air separation equipment, petrochemicals, refrigeration and cryogenics, automotive, and aerospace industries. Typically, the fins are the core heat exchange component in a plate-fin heat exchanger, and they come in various forms, including staggered fins, straight fins, corrugated fins, and louvered fins. When fluid flows through the fluid channels formed between the two plates, it is continuously disrupted by the fins, thus enhancing heat transfer capacity. However, this also results in high fluid flow resistance.
[0055] The staggered fin structure is the most common fin type in plate heat exchangers. Conventionally, staggered fins are arranged in the fluid channel to increase the contact area with the fluid, enhance the turbulence intensity of the fluid, and thus improve the heat transfer capacity.
[0056] Although fins currently enhance heat transfer by increasing turbulence structures such as reducing fin height, increasing peak spacing, reducing pitch, or even opening holes on the fin surface, this also greatly increases the resistance of the staggered fins.
[0057] Based on the problems existing in the prior art, please refer to Figures 1 to 3. This disclosure provides a heat exchange fin 10 with a staggered tooth structure, which is applied to a heat exchange device and can be used in air separation equipment, petrochemical, refrigeration and cryogenic fields, automotive and aerospace industries.
[0058] It should be noted that in the heat exchange device, there are multiple heat exchange fins 10, and multiple heat exchange fins 10 are arranged in an overlapping manner to form a flow channel between two heat exchange fins 10. Each heat exchange fin 10 is provided with multiple fin units 100. By reasonably designing the structure of the fin unit 100, the heat exchange performance can be improved while the resistance of the fin unit 100 to the fluid can be reduced.
[0059] In detail, the fin unit 100 includes a first base plate 110, a second base plate 120, a first spoiler 130, a second spoiler 140, a third spoiler 150, and a fourth spoiler 160.
[0060] The first base plate 110, the first spoiler 130, the second spoiler 140 and the second base plate 120 are connected in sequence. The first spoiler 130 and the second spoiler 140 are set at an angle to each other, and the first spoiler 130 and the second spoiler 140 form a first tooth.
[0061] The first base plate 110, the third spoiler 150, the fourth spoiler 160 and the second base plate 120 are connected in sequence. The third spoiler 150 and the fourth spoiler 160 are set at an angle and form a second tooth.
[0062] First, it should be noted that the first base plate 110 and the second base plate 120 have the same structure, and the first base plate 110 and the second base plate 120 are arranged in a centrally symmetrical manner.
[0063] The first tooth and the second tooth are arranged sequentially along the length of the first base plate 110 and the second base plate 120.
[0064] First, define the first plane and the second plane. The first base plate 110 and the second base plate 120 are located on the second plane. The first plane and the second plane are perpendicular. The second spoiler 140 and the third spoiler 150 are perpendicular to the first plane. The projections of the second spoiler 140 and the third spoiler 150 on the first plane are intersecting, that is, the first tooth and the second tooth are staggered tooth structures.
[0065] The first base plate 110 and the second base plate 120 are located on the same plane, namely the second plane. The angle between the first spoiler 130 and the second plane is the first angle, that is, the angle between the second spoiler 140 and the second plane is the second angle, the angle between the third spoiler 150 and the second plane is the third angle, and the angle between the fourth spoiler 160 and the second plane is the fourth angle.
[0066] Wherein, the first included angle is greater than or less than the second included angle. Of course, not only that, in other embodiments of this disclosure, the third included angle may be greater than or less than the fourth included angle; or in some other embodiments of this disclosure, the first included angle may be greater than or less than the second included angle, and the third included angle may be greater than or less than the fourth included angle.
[0067] In other words, the first included angle is not equal to the second included angle, and the third included angle is not equal to the fourth included angle. It is also possible to make the first included angle not equal to the second included angle while making the third included angle not equal to the fourth included angle.
[0068] In this embodiment, by making the first included angle not equal to the second included angle, or making the third included angle not equal to the fourth included angle, or simultaneously making the first included angle not equal to the second included angle and the third included angle not equal to the fourth included angle, at least one of the first baffle 130, the second baffle 140, the third baffle 150 and the fourth baffle 160 has a smaller tilt angle relative to the other baffles. Therefore, during the flow of fluid in the heat exchange fins 10, the fluid can have a stronger flow on the baffle with a smaller tilt angle. Thus, the fluid can more strongly impact the top and bottom of the fin unit 100, thereby improving the heat exchange efficiency. Moreover, with the above structure, the fluid can also flow stably up and down between two adjacent teeth, further enhancing the turbulence of the fin unit 100, thereby improving the heat exchange capacity.
[0069] Optionally, the fin unit 100 further includes a fifth spoiler 170 and a sixth spoiler 180. The two ends of the fifth spoiler 170 are respectively connected to the first spoiler 130 and the second spoiler 140, and the two ends of the sixth spoiler 180 are respectively connected to the third spoiler 150 and the fourth spoiler 160.
[0070] In this embodiment, the fifth baffle plate 170 and the sixth baffle plate 180 are both arranged parallel to the first base plate 110 and the second base plate 120. Therefore, during the flow of fluid in the heat exchange fins 10, the fluid has a stronger flow on the baffle plates with a smaller inclination angle, which allows the fluid to more directly impact the fifth baffle plate 170 and the sixth baffle plate 180 located at the top of the fin unit 100, as well as the first base plate 110 and the second base plate 120 located at the bottom of the fin unit 100, thereby improving the heat exchange capacity of the fin unit 100.
[0071] As shown in Figures 4 and 5, the fin unit 100 provided in this disclosure is compared with conventional staggered fins using CFD (Computational Fluid Dynamics). It can be clearly seen that when the fluid passes through the fin unit 100 provided in this application, the fluid has a stronger flow in the height direction, and the fin has a stronger ability to enhance the turbulence.
[0072] As shown in Figure 6, the CFD data shows that, under the same space and operating conditions, the heat exchange fins 10 provided in this application have a heat exchange capacity of 4.26% higher and a pressure drop of 5.46% lower than that of traditional staggered tooth fins.
[0073] Optionally, the fifth spoiler 170 and the sixth spoiler 180 are located on a third plane parallel to the second plane. The distance between the third plane and the second plane is set to Fh, the farthest distance between the first base plate 110 and the second base plate 120 is set to Fp, the first included angle is set to θ1, and the second included angle is set to θ2. Then the following formula is satisfied: arctan(Fh / Fp)<θ2<θ1<90°.
[0074] In this embodiment, by making multiple parameters of the fin unit 100 satisfy the above formula, the structural design of the fin unit 100 is made reasonable, thereby ensuring that the fluid has a stronger movement in the height direction of the fin unit 100 when passing through the fin unit 100, thereby effectively improving the turbulence capability of the fin unit 100 and thus improving the heat exchange capability.
[0075] Optionally, in some embodiments of this disclosure, as shown in Figures 7 and 8, the first included angle may be greater than or less than the fourth included angle. Of course, in other embodiments of this disclosure, the second included angle may be greater than or less than the third included angle, or in other embodiments of this disclosure, the first included angle may be greater than or less than the fourth included angle, and the second included angle may be greater than or less than the third included angle simultaneously.
[0076] In other words, it is possible to make the first included angle not equal to the fourth included angle, or to make the second included angle greater than or less than the third included angle, or to make the second included angle greater than or less than the third included angle while the first included angle is not equal to the fourth included angle.
[0077] In this embodiment, by making the tilt angles of the first baffle 130 and the fourth baffle 160 of adjacent teeth different, or by making the tilt angles of the second baffle 140 and the third baffle 150 of adjacent teeth different, or by making the tilt angles of the first baffle 130 and the fourth baffle 160 different, and the tilt angles of the second baffle 140 and the third baffle 150 different, that is, satisfying at least one of θ1≠θ4 and θ2≠θ3, the turbulence capability of the fin unit 100 is further improved, thereby further improving the heat exchange capability of the heat exchange fin 10.
[0078] Optionally, in some embodiments of this disclosure, as shown in FIG9, the width of the first spoiler 130 may be a first width, and the width of the fourth spoiler 160 may be a second width, wherein the first width is greater than or less than the second width.
[0079] In this embodiment, by making the opening widths of adjacent teeth inconsistent, that is, LP1≠LP2, the turbulence capability of the fin unit 100 is further improved, and thus the heat exchange capability of the heat exchange fin 10 is further improved.
[0080] It should also be noted that the width of the second spoiler is the third width, and the width of the third spoiler is the fourth width, with the third width being greater than or less than the fourth width.
[0081] In this embodiment, it is sufficient to satisfy at least one of the following conditions: "the first width is greater than or less than the second width" and "the third width is greater than or less than the fourth width".
[0082] It is also worth mentioning that the first spoiler 130 and the second spoiler 140 have the same width, and the third spoiler 150 and the fourth spoiler 160 have the same width.
[0083] Optionally, there are multiple fin units 100, which are arranged in an array, and two adjacent fin units 100 are connected by a first base plate 110 or a second base plate 120.
[0084] Optionally, along a first direction (X direction as shown in the figure) from the first base plate 110 toward the second base plate 120, the first base plate 110 of any fin unit 100 is connected to the second base plate 120 of the adjacent fin unit 100.
[0085] Along the length of the first base plate 110 or the second base plate 120, that is, along the second direction perpendicular to the first direction (the Y direction as shown in the figure), the first base plate 110 of any fin unit 100 is connected to the first base plate 110 of the adjacent fin unit 100, and the second base plate 120 of any fin unit 100 is connected to the second base plate 120 of the adjacent fin unit 100.
[0086] Therefore, in this embodiment, multiple fin units 100 are connected only through the first base plate 110 and the second base plate 120, so that the heat exchange fins 10 can be made from a single sheet material by a one-piece forming process such as stamping. The process is simple and low-cost, and the resulting fin units 100 or even the heat exchange fins 10 have high structural strength.
[0087] Optionally, in other embodiments of this disclosure, the fin unit 100 may be combined with conventional staggered fins, as shown in Figures 10 and 11. The heat exchange fin 10 may also include a plurality of connecting units 200, and the number of fin units 100 may be plurality of.
[0088] Along the first direction, the connecting unit 200 is disposed between two adjacent fin units 100, and the two adjacent fin units 100 are inverted relative to each other. That is, multiple fin units 100 and multiple connecting units 200 are connected sequentially in the distribution of fin unit 100, connecting unit 200, fin unit 100, connecting unit 200, etc. In the two adjacent fin units 100, the bottom plate of one fin unit 100 is located at the bottom, and the bottom plate of the other fin unit 100 is located at the top, so as to be arranged in an inverted manner.
[0089] It should be noted that, since the two adjacent fin units 100 are inverted relative to each other, the two adjacent connecting units 200 are arranged symmetrically.
[0090] Alternatively, a portion of the multiple fin units 100 may be provided with a connecting unit 200; moreover, in some other embodiments of this disclosure, two adjacent fin units 100 may also be arranged in the same direction, i.e., they do not need to be arranged as inverted structures.
[0091] Optionally, along a second direction perpendicular to the first direction, the first base plate 110 of any fin unit 100 is connected to the first base plate 110 of another adjacent fin unit 100, and the second base plate 120 of any fin unit 100 is connected to the second base plate 120 of another adjacent fin unit 100.
[0092] In this embodiment, the heat exchange fins 10 formed in this way still have a strong turbulence-causing ability for the fluid, thereby improving the heat exchange capacity of the heat exchange fins 10; in addition, by combining the heat exchange fins 10 with the conventional connection unit 200, the adaptability of the heat exchange fins 10 is also improved, so that the heat exchange fins 10 can be applied to different application scenarios.
[0093] Optionally, the connection unit 200 includes a first connection plate 210, a second connection plate 220, a third connection plate 230, and a fourth connection plate 240.
[0094] The first connecting plate 210 and the fourth connecting plate 240 are arranged in parallel. The two ends of the second connecting plate 220 are connected to the first connecting plate 210 and the fourth connecting plate 240 respectively. The two ends of the third connecting plate 230 are connected to the first connecting plate 210 and the fourth connecting plate 240 respectively. The first connecting plate 210 is connected to the first base plate 110 of the adjacent fin unit 100. The fourth connecting plate 240 is connected to the second base plate 120 of another adjacent fin unit 100. The second connecting plate 220 and the third connecting plate 230 are arranged in parallel.
[0095] In this embodiment, by providing a connecting unit 200 in multiple fin units 100, and connecting the first connecting plate 210 and the fourth connecting plate 240 of the connecting unit 200 to the first base plate 110 and the second base plate 120 of the fin unit 100 respectively, deformation of the heat exchange fins 10 can be prevented, thereby improving the overall structural stability and structural strength of the heat exchange fins 10.
[0096] Optionally, this disclosure also provides a heat exchanger including the heat exchange fins in the above embodiments. The heat exchanger also includes a plurality of heat exchange plates, which are stacked and arranged in layers, with heat exchange fins 10 disposed between at least one group of adjacent heat exchange plates.
[0097] It should be noted that the heat exchanger provided in this disclosure can be widely used in other fields such as water-cooled plates and controllers, and no specific limitations are made here.
[0098] In summary, the embodiments of this disclosure provide a finned unit 100 and heat exchange fins 10. By making the first included angle not equal to the second included angle, or making the third included angle not equal to the fourth included angle, or simultaneously making the first included angle not equal to the second included angle and the third included angle not equal to the fourth included angle, at least one of the first baffle 130, the second baffle 140, the third baffle 150 and the fourth baffle 160 has a smaller inclination angle relative to the other baffles. Therefore, during the flow of fluid in the heat exchange fins 10, the fluid can have a stronger flow on the baffle with a smaller inclination angle. Thus, the fluid can more strongly impact the top and bottom of the finned unit 100, thereby improving the heat exchange efficiency. Moreover, through the above structure, the fluid can also flow stably up and down between two adjacent teeth, further enhancing the turbulence of the finned unit 100, thereby improving the heat exchange capacity.
[0099] The above description is merely a specific embodiment of this disclosure, but the scope of protection of this disclosure is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this disclosure should be included within the scope of protection of this disclosure. Therefore, the scope of protection of this disclosure should be determined by the scope of the claims. Industrial applicability
[0100] In summary, the embodiments of this disclosure provide a finned unit, heat exchange fins, and a heat exchanger that enable fluid to flow more strongly on a baffle plate with a smaller inclination angle, thereby allowing the fluid to more strongly impact the top and bottom of the finned unit and thus improving heat exchange efficiency.
Claims
1. A finned unit, characterized in that, The fin unit (100) includes a first base plate (110), a second base plate (120), a first spoiler (130), a second spoiler (140), a third spoiler (150), and a fourth spoiler (160); The first base plate (110), the first spoiler (130), the second spoiler (140) and the second base plate (120) are connected in sequence, and the first spoiler (130) and the second spoiler (140) are arranged at an angle. The first base plate (110), the third spoiler (150), the fourth spoiler (160) and the second base plate (120) are connected in sequence, and the third spoiler (150) and the fourth spoiler (160) are arranged at an angle. Define a first plane and a second plane, with the first base plate (110) and the second base plate (120) located on the second plane, the first plane and the second plane being perpendicular, and the projections of the second spoiler (140) and the third spoiler (150) on the first plane being intersected; Wherein, the angle between the first spoiler (130) and the second plane is the first included angle, the angle between the second spoiler (140) and the second plane is the second included angle, the angle between the third spoiler (150) and the second plane is the third included angle, and the angle between the fourth spoiler (160) and the second plane is the fourth included angle. Wherein, the first included angle is greater than or less than the second included angle; and / or, the third included angle is greater than or less than the fourth included angle.
2. The finned unit according to claim 1, characterized in that, The first included angle is greater than or less than the fourth included angle.
3. The finned unit according to claim 1 or 2, characterized in that, The second included angle is greater than or less than the third included angle.
4. The finned unit according to claim 1, characterized in that, The first included angle is not equal to the fourth included angle.
5. The finned unit according to any one of claims 1-4, characterized in that, The first spoiler (130) has a first width, and the fourth spoiler (160) has a second width, wherein the first width is greater than or less than the second width; and / or, The second spoiler (140) has a third width, and the third spoiler (150) has a fourth width, wherein the third width is greater than or less than the fourth width.
6. The finned unit according to any one of claims 1-5, characterized in that, The fin unit (100) further includes a fifth spoiler (170) and a sixth spoiler (180). The two ends of the fifth spoiler (170) are respectively connected to the end of the first spoiler (130) away from the first base plate (110) and the end of the second spoiler (140) away from the second base plate (120). The two ends of the sixth spoiler (180) are respectively connected to the end of the third spoiler (150) away from the first base plate (110) and the end of the fourth spoiler (160) away from the second base plate (120).
7. The finned unit according to claim 6, characterized in that, The fifth spoiler (170) and the sixth spoiler (180) are located on a third plane parallel to the second plane. The distance between the third plane and the second plane is set to Fh, the farthest distance between the first base plate (110) and the second base plate (120) is set to Fp, the first included angle is set to θ1, and the second included angle is set to θ2. Then the following formula is satisfied: arctan(Fh / Fp)<θ2<θ1<90°.
8. A heat exchange fin, characterized by, It includes a plurality of finned units (100) as described in any one of claims 1-7, wherein the plurality of finned units (100) are connected via the first base plate (110) or the second base plate (120).
9. The heat transfer fin according to claim 8, wherein A first direction and a second direction are defined, the first direction and the second direction are perpendicular, the second direction is parallel to the main flow direction of the fluid, and the number of fin units (100) is multiple, and the multiple fin units (100) are arranged in an array along the first direction and the second direction; Furthermore, along the first direction, the first base plate (110) of any one of the fin units (100) is connected to the second base plate (120) of the adjacent fin unit (100); Along the second direction, the first base plate (110) of any one of the fin units (100) is connected to the first base plate (110) of the adjacent fin unit (100), and the second base plate (120) of any one of the fin units (100) is connected to the second base plate (120) of the adjacent fin unit (100).
10. The heat exchanging fin according to claim 8 or 9, characterized in that The heat exchange fins (10) also include multiple connecting units (200), and the number of fin units (100) is multiple; Along the first direction, the connecting unit (200) is disposed between two adjacent fin units (100), and the two adjacent fin units (100) are inverted relative to each other; Along the second direction, the first base plate (110) of any one of the fin units (100) is connected to the first base plate (110) of the adjacent fin unit (100), and the second base plate (120) of any one of the fin units (100) is connected to the second base plate (120) of the adjacent fin unit (100). A first direction and a second direction are defined, the first direction and the second direction are perpendicular, the second direction is the main flow direction parallel to the fluid, and the plurality of fin units (100) and the plurality of connecting units (200) are arranged in an array along the first direction and the second direction.
11. The heat transfer fin according to claim 10, wherein The connecting unit (200) includes a first connecting plate (210), a second connecting plate (220), a third connecting plate (230), and a fourth connecting plate (240); The first connecting plate (210) and the fourth connecting plate (240) are arranged in parallel. The two ends of the second connecting plate (220) are connected to the first connecting plate (210) and the fourth connecting plate (240) respectively. The two ends of the third connecting plate (230) are connected to the first connecting plate (210) and the fourth connecting plate (240) respectively. The first connecting plate (210) is connected to the first base plate (110) of the adjacent fin unit (100). The fourth connecting plate (240) is connected to the second base plate (120) of another adjacent fin unit (100).
12. The heat transfer fin according to claim 11, wherein The second connecting plate and the third connecting plate are arranged in parallel.
13. A heat exchanger, characterized by The heat exchanger includes the heat exchange fins (10) as described in any one of claims 8-12, and further includes a plurality of heat exchange plates, wherein the plurality of heat exchange plates are stacked, and the heat exchange fins (10) are disposed between at least one group of adjacent heat exchange plates.