Radiator

Abstract

The utility model relates to the field of household appliances, in particular to a radiator, which comprises a substrate and a plurality of fins, the fins are integrally formed, two ends of each fin are provided with mounting portions, the middle of each fin is provided with an air guide portion, the surface of each air guide portion is wavy, and the wavy portions on two sides of each air guide portion are not symmetrically distributed about a central axis O; the waves on the two sides fluctuate and change along the same direction; the multiple fins are different in height, according to the different heights, the multiple fins form a high-load area, a transition area and a low-load area, the number of the transition area is at least one, the number of the high-load area is at least one, and the number of the low-load area is at least one. Rectangular fins or isosceles trapezoid fins are poor in heat dissipation effect and high in pressure drop.

Description

Technical Field

[0001] This utility model relates to the field of household appliances, and in particular to a radiator. Background Technology

[0002] Ensuring stable equipment operation and extending its service life are among the main functions of radiators. When household appliances operate under high intensity for extended periods, their internal temperatures rise. If heat is not dissipated in time, it will not only affect the equipment's performance, causing it to slow down, lag, or even crash, but it will also accelerate the aging of internal components and shorten the overall lifespan of the equipment. Radiators, through efficient heat conduction and heat dissipation mechanisms, effectively reduce the internal temperature of the equipment, providing a solid guarantee for its stable operation and thus extending its service life.

[0003] However, the fins of the radiators currently popular on the market are rectangular or trapezoidal with equal height. Such radiator shapes do not bring out the maximum heat dissipation effect of the fins. In order to have sufficient heat dissipation area, the height of the fins is usually large, resulting in greater flow resistance and higher pressure drop. Utility Model Content

[0004] In view of the above-mentioned defects, the purpose of this utility model is to propose a heat sink that solves the problems of poor heat dissipation and high pressure drop of rectangular fins or isosceles trapezoidal fins in current heat sinks.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] A heat sink includes a base plate and a plurality of fins, wherein the plurality of fins are disposed on the top of the base plate; the fins are integrally formed, and the two ends of the fins are mounting portions, the two sides of the mounting portions are straight line segments, and any one of the mounting portions is used to mount the fins onto the base plate; the middle part of the fins is an air guide portion, the surface of the air guide portion is wavy, the wavy shape on both sides of the air guide portion is not symmetrically distributed about the central axis O, and the wavy shape on both sides changes with the same undulation in the same direction;

[0007] A plurality of fins are arranged in an array along the same side of the substrate, the plurality of fins are parallel to each other, and the wave-like shape of the air guide varies in the same direction between adjacent fins; the plurality of fins have different heights, and according to the different heights, the plurality of fins respectively form a high-load zone, a transition zone and a low-load zone, the fins in the high-load zone have the same height and the fins in this zone have the largest height, the fins in the low-load zone have the smallest height, the transition zone is located between the high-load zone and the low-load zone, and the number of the transition zone, the high-load zone and the low-load zone is at least one.

[0008] Preferably, the length L of the plurality of fins is equal, and the spacing d between adjacent fins is the same, that is, the plurality of fins are arranged at equal intervals.

[0009] Furthermore, the substrate includes a high-load region, two low-load regions, and two transition regions. The low-load regions are located at the outermost ends, the high-load regions are located in the middle, and the two ends of the high-load regions are the transition regions. The transition regions are located between the high-load regions and the low-load regions, and the height of the fins in the transition regions gradually decreases from the high-load regions to the low-load regions.

[0010] Preferably, the substrate includes a high-load region, a low-load region, and a transition region, wherein the high-load region, the transition region, and the low-load region are arranged sequentially on the substrate, and the fin height of the transition region gradually decreases from the high-load region to the low-load region.

[0011] Preferably, the wavelength and wave height of the wave shape on both sides of the air guide portion of the plurality of fins are equal.

[0012] Preferably, the outer end cross-section of the mounting portion away from the substrate is an arc, that is, the two sides of the mounting portion are connected by an arc surface.

[0013] Preferably, the substrate is a cuboid, and the substrate has at least four through holes located between the four corners of the substrate and the fins. The fins have mounting clearance areas corresponding to the through holes, and the mounting clearance areas are used to provide areas for mounting and fixing the substrate.

[0014] Preferably, the spacing d between the fins is 4-5 mm, the horizontal width W1 of the fin crest is 0.8-0.9 mm, the horizontal width W2 of the fin trough is 0.7-0.8 mm, the fin height H1 in the high load area is 40-45 mm, and the fin height H2 in the low load area is 10-15 mm.

[0015] Preferably, the fins are detachably mounted on the substrate, and the fins are perpendicular to the top surface of the substrate.

[0016] The technical solution provided by this utility model can include the following beneficial effects:

[0017] The fins used in this technical solution have a wavy surface. The wavy shape on both sides of the fins is not symmetrically distributed around the central axis O, and the wavy shape on both sides changes in the same direction. In addition, the fins of several different heights are divided into high-load area, transition area and low-load area. This ensures that the heat dissipation area is increased while optimizing the flow path of the fluid when it flows through the fins, improving heat exchange efficiency, reducing eddies and flow separation, and maintaining a low overall pressure drop. Attached Figure Description

[0018] Figure 1 This is a structural schematic diagram of one embodiment of the present invention.

[0019] Figure 2 This is a schematic diagram of the bottom structure of one embodiment of the present invention.

[0020] Figure 3 This is a front view of one embodiment of the present invention.

[0021] Figure 4 This is an enlarged view of a portion of the fins in one embodiment of the present invention.

[0022] The components include: substrate 1, fins 2, mounting section 21, air guide section 22, high load area 3, low load area 4, transition area 5, through hole 11, and mounting clearance area 12. Detailed Implementation

[0023] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0024] In the description of this utility model, it should be understood that the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description. They 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 on this utility model. Furthermore, features defined with "first" and "second" may explicitly or implicitly include one or more of these features, used to distinguish and describe features, without any order or emphasis.

[0025] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0026] The following is in conjunction with the accompanying drawings. Figures 1 to 4 The technical solution of this utility model will be further illustrated through specific implementation methods.

[0027] A heat sink includes a base plate 1 and a plurality of fins 2, wherein the plurality of fins 2 are disposed on the top of the base plate 1; the fins 2 are integrally formed, and the two ends of the fins 2 are mounting portions 21, the two sides of the mounting portions 21 are straight line segments, and any one of the mounting portions 21 is used to mount the fins 2 onto the base plate 1; the middle part of the fins 2 is an air guide portion 22, the surface of the air guide portion 22 is wavy, the wavy shape on both sides of the air guide portion 22 is not symmetrically distributed about the central axis O, and the wavy shape on both sides undulates in the same direction;

[0028] A plurality of fins 2 are arranged in an array along the same side of the substrate 1. The plurality of fins 2 are parallel to each other. Between adjacent fins 2, the wave-like shape of the air guide 22 changes in the same direction and undulates in the same way. The plurality of fins 2 have different heights. According to the different heights, the plurality of fins 2 respectively form a high-load zone 3, a transition zone 5 and a low-load zone 4. The fins in the high-load zone 3 have the same height and the fins in this zone have the largest height. The fins in the low-load zone 4 have the smallest height. The transition zone 5 is located between the high-load zone 3 and the low-load zone 4. The number of the transition zone 5, the high-load zone 3 and the low-load zone 4 is at least one.

[0029] Currently, most radiators on the market have rectangular or isosceles trapezoidal fins. These shapes do not maximize the heat dissipation effect of the fins. Therefore, this technical solution proposes a radiator, such as... Figure 3-4 As shown, the fins used in this radiator have a wavy shape in the middle. That is, the wavy shape on both sides of the air guide 22 undulates in the same direction, and the wave crest on one side of the air guide 22 corresponds to the wave crest on the other side of the air guide 22. Compared with rectangular or isosceles trapezoidal fins of the same height, the contact area between the air guide 22 and the flowing gas is increased. At the same time, in order to achieve a similar heat dissipation effect, the fins 2 of this technical solution need to be smaller in height, effectively reducing the occupied area, further reducing the size of the radiator, improving the internal space utilization of the household appliances using the radiator, and saving costs.

[0030] Meanwhile, between adjacent fins 2, the wave-like shape of the air guide 22 on both sides undulates in the same direction, which, in addition to increasing the contact area, guides the fluid in an orderly manner, improves the heat exchange efficiency, and separates or destroys the thermal boundary layer to improve its heat exchange performance.

[0031] Furthermore, several fins 2 are arranged in an array along the same side of the substrate 1, and the fins 2 are parallel to each other. Between adjacent fins 2, the wave-like shape on opposite sides of the air guide 22 changes in the same direction. The heights of the fins 2 are different. Based on the different heights, the fins 2 are divided into a high-load zone 3, a transition zone 5, and a low-load zone 4. The transition zone 5 is located between the high-load zone 3 and the low-load zone 4. This reduces the formation of local hot spots, disperses heat, and thus lowers the local temperature. At the same time, it optimizes the fluid flow according to different heat dissipation areas. The flow path of the fins 2 reduces eddies and flow separation, maintaining a low overall pressure drop. Furthermore, the fin height in the transition zone 5 changes gradually, rather than changing directly from the fin height in the high-load zone 3 to the fin height in the low-load zone 4. This ensures that the radiator has significantly lower flow resistance while maintaining a high local heat transfer coefficient. If the change were direct, the temperature distribution in the corresponding area would be uneven, leading to discontinuity in fluid flow, increasing flow resistance and pressure drop. This technical solution effectively solves the problem of poor heat dissipation and high pressure drop of rectangular or isosceles trapezoidal fins in radiators.

[0032] Preferably, such as Figure 1 As shown, the length L of several fins 2 is equal, and the spacing d between adjacent fins 2 is the same, that is, several fins 2 are arranged at equal intervals.

[0033] It is worth noting that the fins 2 arranged at equal intervals can provide uniform heat transfer efficiency because they ensure a more uniform heat distribution on the radiator, making airflow smoother and reducing turbulence and eddies caused by uneven fin arrangement.

[0034] Furthermore, the substrate 1 includes one high-load region 3, two low-load regions 4, and two transition regions 5. The low-load regions 4 are located at the outermost ends, the high-load region 3 is located in the middle, and the two ends of the high-load region 3 are the transition regions 5. The transition regions 5 are located between the high-load region 3 and the low-load region 4, and the height of the fins 2 of the transition regions 5 gradually decreases from the high-load region 3 to the low-load region 4.

[0035] Specifically, the fins 2 in the high-load zone 3 are the tallest, and the fins in the low-load zone 4 are the shortest. The fin height in the transition zone 5 between the high-load zone 3 and the low-load zone 4 gradually decreases from the middle to both ends. The height of the tallest fin in the transition zone 5 is less than the height of the fins in the high-load zone 3, and the height of the shortest fin in the transition zone 5 is higher than the height of the fins in the low-load zone 4. For heat-dissipating devices with high heat in the middle and low heat at both ends, this structure can more effectively improve the heat dissipation efficiency of the heat sink while reducing the space occupancy and ensuring uniform temperature distribution, effectively reducing pressure drop. In the areas with lower heat at both ends, the low-load zone 4 is used accordingly, avoiding the need to use taller fins 2 to handle less heat with the same heat dissipation effect, effectively saving costs.

[0036] Furthermore, the substrate 1 includes a high-load region 3, a low-load region 4, and a transition region 5. The high-load region 3, the transition region 5, and the low-load region 4 are arranged sequentially on the substrate 1, and the fin height of the transition region 5 gradually decreases from the high-load region 3 to the low-load region 4.

[0037] Specifically, such as Figure 1 As shown, the high-load region 3, the transition region 5, and the low-load region 4 are arranged sequentially on the substrate 1. That is, the height of the fins 2 gradually decreases as a whole, which satisfies the requirement of a larger heat dissipation area at one end of the device being dissipated due to the larger heat.

[0038] Preferably, the wavelength and wave height of the wave shape on both sides of the air guide portion 22 of the plurality of fins 2 are equal.

[0039] Specifically, when the wavelength and wave height of the wavy fins 2 are equal, uniform heat transfer and hydrodynamic characteristics can be provided throughout the radiator. This uniformity helps optimize overall thermal performance and pressure loss, allowing the radiator to operate with similar efficiency in all parts.

[0040] Preferably, the outer end cross-section of the mounting portion 21 away from the substrate 1 is an arc, that is, the two sides of the mounting portion 21 are connected by an arc surface.

[0041] Specifically, the top section of the fin 2 is arc-shaped. Compared with a straight line segment, the fins are joined at an angle. When the air flows, the arc-shaped joint can reduce the local stress at the top of the fin 2, improve the heat exchange efficiency, and further increase the heat exchange area. At the same time, it can reduce the resistance and disturbance in the fluid flow, thereby further reducing the pressure drop.

[0042] Preferably, the substrate 1 is a cuboid, and the substrate 1 has at least four through holes 11. The through holes 11 are located between the four corners of the substrate 1 and the fins 2. The fins 2 have mounting clearance areas 12, which correspond to the through holes 11. The mounting clearance areas 12 are used to provide areas for mounting and fixing the substrate 1.

[0043] like Figure 1-2 As shown, the through holes 11 are located at the four corners of the substrate 1. In use, the substrate 1 is fixed through the through holes 11, which can provide stronger structural stability, evenly distribute the force, and reduce the risk of deformation and damage to the substrate 1. Compared with drilling holes in the center or other positions of the substrate 1, the through holes 11 at the four corners can reduce material waste and reduce the impact on the fins 2. Furthermore, the through holes 11 can adapt to a variety of different fixing and installation methods, whether it is vertical, horizontal or inclined installation.

[0044] In addition, the bottom of the fin 2 is provided with a mounting avoidance area 12, which corresponds to the through hole 11. The mounting avoidance area 12 is used to provide an area for mounting and fixing the substrate 1, so as to avoid affecting the connection and fixing of the substrate 1 with other devices.

[0045] Furthermore, the spacing d between the fins 2 is 4-5 mm, the horizontal width W1 of the crest of the fin 2 is 0.8-0.9 mm, the horizontal width W2 of the trough of the fin 2 is 0.7-0.8 mm, the fin height H1 of the high load zone 3 is 40-45 mm, and the fin height H2 of the low load zone 4 is 10-15 mm.

[0046] Specifically, such as Figure 4 As shown, within this numerical range, the horizontal width of the peak is 0.8-0.9 mm, and the horizontal width of the trough is 0.7-0.8 mm. This waveform setting can increase the contact area between the air and the fins 2, and accelerate the heat transfer. Under this premise, reasonably setting the distance between the fins 2 helps to improve the heat dissipation efficiency.

[0047] The fin height of the high-load zone 3 is 40-45mm, and the fin height of the low-load zone 4 is 10-15mm, which is adapted to the spacing of the fins 2, effectively increasing the overall heat dissipation area of ​​the radiator, meeting heat dissipation requirements, and achieving better heat dissipation effect and system performance.

[0048] Preferably, the fin 2 is detachably mounted on the substrate 1, and the fin 2 is perpendicular to the top surface of the substrate 1.

[0049] Specifically, the fins 2 are detachably mounted on the substrate 1. The positions of the high-load zone 3 and the low-load zone 4 can be adjusted according to the heat distribution of the equipment that needs heat dissipation, so as to meet the needs of equipment zonal heat dissipation, better adapt to different equipment, increase the heat dissipation area, and reduce the pressure drop.

[0050] Preferably, the substrate 1 is provided with a groove that is adapted to the mounting portion 21 of the fin 2, so that the fin 2 can be mounted on the substrate 1 by engaging the mounting portion 21 in the groove of the substrate 1.

[0051] The technical principles of this utility model have been described above with reference to specific embodiments. These descriptions are merely for explaining the principles of this utility model and should not be construed as limiting the scope of protection of this utility model in any way. Based on this explanation, those skilled in the art can readily conceive of other specific embodiments of this utility model without any inventive effort, and these embodiments will all fall within the scope of protection of this utility model.

Claims

1. A radiator, characterized in that: It includes a substrate and several fins, with the several fins disposed on the top of the substrate; The fin is integrally formed, and both ends of the fin are mounting portions. The two sides of the mounting portions are straight line segments. Each of the mounting portions is used to mount the fin onto the substrate. The middle part of the fin is the air guide section, the surface of the air guide section is wavy, the wavy shape on both sides of the air guide section is not symmetrically distributed about the central axis O, and the wavy shape on both sides changes in the same direction with the same undulation. The fins are arranged in an array along the same side of the substrate, the fins are parallel to each other, and the wave shape of the air guide varies in the same direction between adjacent fins. The fins have different heights. Based on the different heights, the fins form a high-load zone, a transition zone, and a low-load zone. The fins in the high-load zone have the same height and the fin height is the largest in this zone. The fins in the low-load zone have the smallest height. The transition zone is located between the high-load zone and the low-load zone. The number of the transition zone, the high-load zone, and the low-load zone is at least one.

2. A radiator according to claim 1, characterized in that: The length L of the fins is equal, and the spacing d between adjacent fins is the same, that is, the fins are arranged at equal intervals.

3. A radiator according to claim 2, characterized in that: The substrate includes a high-load region, two low-load regions, and two transition regions. The low-load regions are located at the outermost ends, the high-load regions are located in the middle, and the two ends of the high-load regions are the transition regions. The transition regions are located between the high-load regions and the low-load regions, and the height of the fins in the transition regions gradually decreases from the high-load regions to the low-load regions.

4. A radiator according to claim 2, characterized in that: The substrate includes a high-load region, a low-load region, and a transition region, which are arranged sequentially on the substrate. The fin height of the transition region gradually decreases from the high-load region to the low-load region.

5. A radiator according to claim 1, characterized in that: The wavelength and wave height of the wave shape on both sides of the air guide section of several of the fins are equal.

6. A radiator according to claim 1, characterized in that: The outer end cross-section of the mounting portion away from the substrate is an arc, that is, the two sides of the mounting portion are connected by an arc surface.

7. A radiator according to claim 1, characterized in that: The substrate is a cuboid, and at least four through holes are provided in the substrate. The through holes are located between the four corners of the substrate and the fins. The fins are provided with mounting clearance areas, which correspond to the through holes. The mounting clearance areas are used to provide areas for mounting and fixing the substrate.

8. A radiator according to claim 2, characterized in that: The spacing d between the fins is 4-5 mm, the horizontal width W1 of the fin crest is 0.8-0.9 mm, the horizontal width W2 of the fin trough is 0.7-0.8 mm, the fin height H1 in the high load area is 40-45 mm, and the fin height H2 in the low load area is 10-15 mm.

9. A radiator according to claim 1, characterized in that: The fins are detachably mounted on the substrate, and the fins are perpendicular to the top surface of the substrate.

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