Radiator and cooling fins

Abstract

The present invention discloses a heat sink fin, which comprises a heat sink body and at least one spoiler. The heat sink body comprises a heat sink and two side plates. The heat sink has at least one break. The two side plates are respectively connected to the opposite sides of the heat sink and protrude from one side of the heat sink. At least one spoiler protrudes from the heat sink and is located on one side of the heat sink. The height of at least one spoiler is less than the height of the heat sink, and at least one spoiler is separated from both side plates. At least one spoiler covers part of at least one break, and the length of at least one spoiler in the long side direction of the heat sink is less than the length of at least one break in the long side direction of the heat sink.

Description

Technical Field

[0001] The invention relates to a radiator and a heat dissipation fin, and in particular to a radiator and a heat dissipation fin. Background Art

[0002] In a computer system, integrated circuits (ICs) such as the CPU, northbridge chip, southbridge chip, and graphics chip of the motherboard are generally heat sources with high heat generation in the computer system. In order to quickly remove the heat energy generated by the integrated circuit (IC), an air-cooled heat dissipation system is generally abandoned and a water-cooled heat dissipation system is adopted. In detail, a water-cooled heat dissipation system generally includes a water-cooling head and a water-cooling radiator connected to each other. The water-cooling head is in thermal contact with the integrated circuit (IC), and the cooling liquid in the water-cooling head is used to transfer the waste heat generated by the integrated circuit (IC) to the water-cooling radiator, and the waste heat of the cooling liquid is removed through the water-cooling radiator.

[0003] In order to further improve the heat dissipation efficiency of the water-cooled heat dissipation system, heat dissipation fins are generally added to the water-cooled head to increase the contact area between the water-cooled head and the cooling fluid. However, in the past, heat dissipation fins all included multiple side-by-side heat dissipation fins. Each heat dissipation fin includes a main body and two folded edges extending in the same direction along opposite sides of the main body. The two folded edges of any heat dissipation fin abut against the main body of the adjacent heat dissipation fin, so that a fluid channel is formed between any two adjacent heat dissipation fins. The fluid channel is for the cooling fluid to pass through. However, according to the current design, since there are no additional spoiler fins in the fluid channel, the flow rate of the cooling fluid is slower and the spoiler effect is poor, thereby reducing the heat exchange efficiency between the cooling fluid and the heat dissipation fins.

[0004] The reason why adding spoiler fins can increase the flow rate of the cooling fluid is that the spoiler fins reduce the cross-sectional area of ​​the flow channel, and according to Bernoulli's principle, the smaller the cross-sectional area of ​​the flow channel, the faster the flow rate. In addition, the increase in speed may cause speed fluctuations, also known as turbulence. Therefore, adding spoiler fins can increase the flow rate of the cooling fluid, the turbulence effect, and increase the heat dissipation area of ​​the entire heat sink fin. However, due to the design of the spoiler fins, the fluid channel is narrowed, and there is a risk that the fluid channel will be blocked by particles in the cooling fluid. If the risk of particle blockage is to be avoided, it may be necessary to increase the spacing between the spoiler fins and the heat sink body in the protruding direction, but the increase in the spacing between the spoiler fins and the heat sink body in the protruding direction will reduce the density of the heat sink fins and affect the overall heat dissipation efficiency of the heat sink fins.

[0005] Take a car with an autonomous driving function as an example. A car with an autonomous driving function has electronic equipment to control the vehicle. This electronic equipment is currently cooled by an aluminum cooling plate with fins inside. Because the cooling fluid inside the aluminum cooling plate rubs against other moving parts in the cooling system, particles are generated, and the particles may adhere to each other to form larger particles and block the gaps between the fins. Summary of the invention

[0006] The present invention provides a radiator and a heat dissipation fin, so as to take into account both the heat exchange efficiency of the heat dissipation fin and the smoothness of the flow of the cooling fluid.

[0007] The heat sink fin disclosed in one embodiment of the present invention includes a heat sink body and at least one spoiler. The heat sink body includes a heat sink and two side plates. The heat sink has at least one break. The two side plates are respectively connected to opposite sides of the heat sink and protrude from one side of the heat sink. At least one spoiler protrudes from the heat sink and is located on one side of the heat sink. The height of at least one spoiler is less than the height of the heat sink, and at least one spoiler is separated from both side plates. At least one spoiler covers part of at least one break, and the length of at least one spoiler in the long side direction of the heat sink is less than the length of at least one break in the long side direction of the heat sink.

[0008] The heat sink disclosed in another embodiment of the present invention includes a plurality of heat sink fins. Each of these heat sink fins includes a heat sink body and at least one spoiler. The two heat sink bodies of two adjacent heat sink fins are connected so that the two adjacent heat sink bodies surround a flow channel. These spoilers are respectively connected to these heat sink bodies, and these spoilers shielded by these heat sink bodies are respectively located in these flow channels. Any spoiler is separated from the heat sink bodies adjacent to these heat sink fins. Among them, the heat sink body has at least one break. At least one spoiler covers part of at least one break, and the length of at least one spoiler in the long side direction of the heat sink body is less than the length of at least one break in the long side direction of the heat sink body.

[0009] Another embodiment of the present invention discloses a heat sink fin comprising a heat sink body and at least one spoiler. The heat sink body comprises a heat sink and two side plates. The heat sink has at least one break. The two side plates are respectively connected to opposite sides of the heat sink and protrude from one side of the heat sink. At least one spoiler protrudes from the heat sink and is located on one side of the heat sink. At least one spoiler covers part of at least one break, and the length of at least one spoiler in the long side direction of the heat sink is less than the length of at least one break in the long side direction of the heat sink.

[0010] Another embodiment of the present invention discloses a heat sink comprising a plurality of heat sink fins. Each of these heat sink fins comprises a heat sink body and at least one spoiler. The two heat sink bodies of two adjacent heat sink fins are connected so that the two adjacent heat sink bodies surround a flow channel, and the spoilers are respectively connected to the heat sink bodies, and the spoilers shielded by the heat sink bodies are respectively located in the flow channels. The heat sink body has at least one break. At least one spoiler covers part of the at least one break, and the length of the at least one spoiler in the long side direction of the heat sink body is less than the length of the at least one break in the long side direction of the heat sink body.

[0011] Another embodiment of the present invention discloses a heat sink comprising at least one first heat sink group and at least one second heat sink group. The at least one first heat sink group comprises a plurality of first heat sink fins, a plurality of first connecting fins and a plurality of second connecting fins, wherein the first heat sink fins are spaced apart, the first connecting fins are spaced apart on one side of the first heat sink fins, the second connecting fins are spaced apart on the other side of the first heat sink fins, and the second connecting fins are staggered with the first connecting fins. The at least one second heat sink group comprises a plurality of second heat sink fins, a plurality of third connecting fins and a plurality of fourth connecting fins, wherein the second heat sink fins are spaced apart, the third connecting fins are spaced apart on one side of the second heat sink fins, the fourth connecting fins are spaced apart on the other side of the second heat sink fins, and the fourth connecting fins are staggered with the third connecting fins. Among them, at least one first heat dissipation group and a second heat dissipation group are arranged side by side in a side-by-side direction, and these first heat dissipation fins and these second heat dissipation fins are staggered in an extension direction, and any two adjacent first heat dissipation fins and second heat dissipation fins maintain a maximum spacing, and the maximum spacing is greater than the spacing between any two adjacent first heat dissipation fins and second heat dissipation fins in the extension direction.

[0012] According to the heat sink and the heat sink fin of the above-mentioned embodiment, by shortening the design value of the length of the diverter plate portion of the spoiler, in addition to increasing the maximum spacing of the openings to avoid the problem of particles blocking the flow channel, the original design value of the spacing between the spoiler and the heat sink in the normal direction can be maintained to avoid the problem of reduced heat dissipation efficiency.

[0013] Furthermore, since the spoiler protrudes from the heat sink body, the splitter plate portion of the spoiler and the heat sink of the heat sink body are displaced. Therefore, the fluid is blocked by the spoiler and the heat sink body to generate turbulence, thereby improving the heat exchange efficiency between the fluid and the radiator.

[0014] In addition, since the spoiler is separated from the heat sink body of the adjacent heat sink fins, or the height of the spoiler is less than the height of the heat sink, and the spoiler is separated from both side plates, the side plates or the heat sink will not be interfered by the diverter plate portion, and there is no need to change the shape of the heat sink body accordingly. Therefore, it will help to make the heat sink fins easier to assemble, such as welding, and to change the design shape of the diverter plate portion.

[0015] The above description of the content of the present invention and the following description of the embodiments are used to demonstrate and explain the principles of the present invention, and to provide a further explanation of the scope of the patent application of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 FIG. 1 is a perspective schematic diagram of a heat sink according to a first embodiment of the present invention.

[0017] Figure 2 for Figure 1 A three-dimensional schematic diagram of the heat sink fins.

[0018] Figure 3 for Figure 1 Schematic diagram of the floor plan.

[0019] Figure 4 for Figure 1 Schematic cross-section diagram of .

[0020] Figure 5 for Figure 4 A partial enlarged schematic diagram of .

[0021] Figure 6 FIG. 4 is a schematic plan view of a heat dissipation fin according to a second embodiment of the present invention.

[0022] Figure 7 FIG. 4 is a schematic plan view of a heat dissipation fin according to a third embodiment of the present invention.

[0023] Figure 8 FIG. 4 is a schematic plan view of a heat dissipation fin according to a fourth embodiment of the present invention.

[0024] Fig. 9 FIG. 5 is a schematic plan view of a heat dissipation fin according to a fifth embodiment of the present invention.

[0025] Fig.10 FIG. 4 is a cross-sectional schematic diagram of a heat dissipation fin according to a sixth embodiment of the present invention.

[0026] Fig.11 FIG. 4 is a schematic plan view of a heat dissipation fin according to a seventh embodiment of the present invention.

[0027] Fig.12 FIG. 4 is a perspective schematic diagram of a heat sink according to an eighth embodiment of the present invention.

[0028] Fig.13 for Fig.12 Schematic side view of .

[0029] Fig.14 for Fig.12 A side view from another perspective.

[0030] Fig.15 for Fig.12 Schematic cross-section diagram of .

[0031] Fig.16 FIG. 4 is a perspective schematic diagram of a heat sink according to a ninth embodiment of the present invention.

[0032] Fig.17 for Fig.16 Schematic side view of .

[0033] Fig.18 for Fig.16 A side view from another perspective.

[0034] Fig.19 for Fig.16 Schematic cross-section diagram of .

[0035] Fig. 20 FIG. 1 is a perspective schematic diagram of a heat sink according to a tenth embodiment of the present invention.

[0036] Fig.21 for Fig. 20 Schematic side view of .

[0037] Fig. 22 for Fig. 20 A side view from another perspective.

[0038] Fig.23 for Fig. 20 Schematic cross-section diagram of .

[0039] Wherein, the reference numerals are:

[0040] 10, 80, 90, 1000 Radiator

[0041] 100, 200, 300, 400, 500, 600, 700 fins

[0042] 110, 210, 310, 410, 510, 610, 710, 810 heat sink

[0043] 111, 211, 311, 411, 511, 611, 711, 811 heat sink

[0044] 1111, 8111 first side

[0045] 111a, 611a, 811a, first page

[0046] 111b Side 2

[0047] 112, 212, 312, 412, 512, 712, 812 side panels

[0048] 120, 220, 320, 420, 520, 620, 720, 820 spoiler

[0049] 821 Second side

[0050] 121, 221, 321, 421, 521, 621, 721 manifold

[0051] 1211 Second side

[0052] 122, 722 connection

[0053] 910, 1010 First cooling group

[0054] 911, 1011 first heat sink fin

[0055] 912, 1012 First connection fin

[0056] 913, 1013 Second connection fin

[0057] 920, 1020 Second cooling group

[0058] 921, 1021 Second heat sink fin

[0059] 922, 1022 Third connection fin

[0060] 923, 1023 Fourth connection fin

[0061] d1, d3, d4, d7, d8 spacing

[0062] d2, d5, d6 protrusion

[0063] F Flow direction

[0064] F1, F2 direction

[0065] D1 side-by-side direction

[0066] D2 extension direction

[0067] G, G1, G2, G3 spacing

[0068] H2, H1 Height

[0069] L Long side

[0070] L1, L2 length

[0071] O Open

[0072] P Breach

[0073] S runner

[0074] T Thickness

[0075] W, W1, W2, W3, W4 Width

[0076] M1, M2, M3 spacing DETAILED DESCRIPTION

[0077] See also Figure 1 to Figure 2 . Figure 1 FIG. 1 is a perspective schematic diagram of a heat sink according to a first embodiment of the present invention. Figure 2 for Figure 1A three-dimensional schematic diagram of the heat sink fins.

[0078] The radiator 10 of the present embodiment is, for example, disposed in a water cooling head (not shown). The radiator 10 includes a plurality of heat dissipation fins 100. Each of these heat dissipation fins 100 includes a heat dissipation body 110 and at least one spoiler 120. The two heat dissipation bodies 110 of two adjacent heat dissipation fins 100 are connected so that a flow channel S is surrounded by the two adjacent heat dissipation bodies 110. The flow channel S is used for a fluid (not shown) to flow through. These spoilers 120 are respectively connected to these heat dissipation bodies 110, and these spoilers 120 shielded by these heat dissipation bodies 110 are respectively located in these flow channels S, and any spoiler 120 is separated from the heat dissipation bodies 110 of the adjacent heat dissipation fins 100.

[0079] In detail, since the structure of each heat sink fin 100 is similar, only one of the heat sink fins 100 is used for description. The heat sink body 110 of the heat sink fin 100 may also include a heat sink 111 and two side plates 112. The heat sink 111 has a first surface 111a and a second surface 111b opposite to each other. The two side plates 112 are respectively connected to the opposite sides of the heat sink 111 and protrude from the first surface 111a of the heat sink 111. In addition, the heat sink 111 has a plurality of breaches P and two first side edges 1111 located on the opposite sides of each breach P, respectively, and the two first side edges 1111 are orthogonal to the long side L of the heat sink 111. However, the design that the two first side edges 1111 are orthogonal to the long side L of the heat sink 111 is not intended to limit the present invention. In other embodiments, the two first side edges may also be non-parallel to the long side of the heat sink at an acute angle.

[0080] The spoiler 120 is, for example, made by a stamping process and protrudes from the first surface 111a of the heat sink 111. The spoiler 120 includes a diverter plate portion 121 and two connecting portions 122. The diverter plate portion 121 is, for example, rectangular in shape and is parallel to the heat sink 111. The opposite sides of the diverter plate portion 121 are respectively connected to the heat sink 111 through the two connecting portions 122, and the other opposite sides are not connected to the heat sink 111. In other words, the diverter plate portion 121 of the spoiler 120 has two opposite second side edges 1211 where it is not connected to the heat sink 111. The two second side edges 1211 are orthogonal to the long side L of the heat sink 111. The two second side edges 1211 of the diverter plate portion 121, the two connecting portions 122 and the two first side edges 1111 of the heat sink 111 together surround two openings O. However, the design that the two second side edges 1211 are orthogonal to the long side L of the heat sink 111 is not intended to limit the present invention. In other embodiments, the two first side edges may also form an acute angle with the long side of the heat dissipation plate and be non-parallel.

[0081] See also Figure 3 . Figure 3 for Figure 1The above-mentioned separation of any spoiler 120 from the heat sink body 110 of the adjacent heat sink fins 100 means that the height H2 of the diverter plate portion 121 of the spoiler 120 is less than the height H1 of the heat sink 111, and the diverter plate portion 121 of the spoiler 120 is separated from both side plates 112. The aforementioned height H1 of the heat sink 111 refers to the size of the heat sink 111 in the direction F1. Similarly, the aforementioned height H2 of the diverter plate portion 121 refers to the size of the diverter plate portion 121 in the direction F1.

[0082] Specifically, the height H2 of the manifold 121 of this embodiment is substantially equal to the height H1 of the heat sink 111 minus 6 times the thickness T of the side plate 112, but the invention is not limited thereto. In other embodiments, the height design value of the manifold may also be determined according to the manufacturing process.

[0083] In addition, in this embodiment, the splitter plate portion 121 of the spoiler 120 maintains the same spacing d1 with the two side plates 112, the width W of the splitter plate portion 121 of each spoiler 120 is the same, and any two splitter plate portions 121 maintain the same spacing G. The width W of the splitter plate portion 121 mentioned above refers to the size of the splitter plate portion 121 in the direction F2, and the direction F2 is orthogonal to the direction F1. The spacing G between the two splitter plate portions 121 refers to the spacing between the two splitter plate portions 121 in the direction F2.

[0084] See also Figure 4 . Figure 4 for Figure 1 Schematic cross-section diagram of . Figure 5 for Figure 4 Schematic diagram of partial enlargement. In the present embodiment, the diverter plate portion 121 of each spoiler 120 is offset from each heat sink 111, and the protrusion amount d2 of the diverter plate portion 121 of each spoiler 120 protruding from the first surface 111a of the heat sink 111 is the same. As indicated by the arrow in the flow channel S, when the fluid flows into the flow channel S, the fluid will be blocked by the diverter plate portion 121 and divided into two, and then, the fluid divided into two will be blocked by the next section of the heat sink 111 and divided into four. Since the fluid will be blocked by the diverter plate portion 121 and the heat sink 111, a turbulent effect will be generated in the flow channel S, and the turbulent effect can force the fluid to rush to the first surface 111a and the second surface 111b of the heat sink 111 and the two side surfaces of the diverter plate portion 121 close to and away from the heat sink 111. Therefore, the design of the diverter plate portion 121 being offset from each heat sink 111 can improve the heat exchange efficiency between the fluid and the radiator 10.

[0085] In addition, since the opening O between the splitter plate portion 121 and the heat dissipation plate 111 does not extend to the two side plates 112 , the structural strength of the heat dissipation fin 100 can be improved.

[0086] Furthermore, since the manifold 121 does not extend to the two side plates 112, the two side plates 112 or the heat sink 111 will not be interfered by the manifold 121, and there is no need to change the shape of the heat sink body 110 accordingly, thereby making it easier to assemble each heat sink fin 100, such as welding, and to change the design shape of the manifold 121. In this way, in addition to simplifying the manufacturing process of the heat sink 10, it is also easier to adjust the design shape of the manifold 121 according to the distribution of the heat source.

[0087] The spoiler 120 and the side plate 112 are both protruded from the first surface 111a of the heat dissipation plate 111, but the present invention is not limited thereto. In other embodiments, the spoiler and the side plate may also protrude from the first surface and the second surface respectively.

[0088] In addition, if Figure 3 and Figure 4 As shown, the length L1 of the diverter plate portion 121 of the spoiler 120 in the direction F2 (parallel to the long side L of the heat sink 111) is less than the length L2 of the breach P in the direction F2 (parallel to the long side L of the heat sink 111), and the orthogonal projection of the diverter plate portion 121 of the spoiler 120 on the heat sink 111 is between the two first side edges 1111, so that the second side edge 1211 of the diverter plate portion 121 of the spoiler 120 and the first side edge 1111 of the heat sink 111 maintain a spacing M1 in the direction F2, and the spacing M1 is not equal to zero. Furthermore, please refer to Figure 4 and Figure 5 . Figure 5 for Figure 4 The splitter plate portion 121 of the spoiler 120 protrudes from one side of the heat sink 111, so that the spoiler 120 and the heat sink 111 maintain a spacing M2 in the normal direction N of the first surface 111a. In addition, the second side edge 1211 of the splitter plate portion 121 and the first side edge 1111 of the heat sink 111 maintain a maximum spacing M3, and the maximum spacing M3 is greater than the spacing M2, and less than the sum of the spacings M1 and M2.

[0089] Taking the diameter of the particles in the cooling fluid as 0.5 to 0.6 mm as an example, the maximum spacing M3 can be designed to be greater than or equal to 0.60 mm. Since the second side 1211 of the diverter plate portion 121 of the spoiler 120 and the first side 1111 of the heat sink 111 maintain a maximum spacing M3 greater than or equal to 0.60 mm, the particles in the cooling fluid will not be blocked in the gap between the spoiler 120 and the heat sink 111. In this way, in addition to improving the heat exchange efficiency of the radiator 10 through the spoiler 120, the smoothness of the flow of the cooling fluid can be maintained by designing the maximum spacing M3 between the spoiler 120 and the heat sink 111. It should be noted that the maximum spacing M3 between the second side 1211 of the diverter plate portion 121 of the spoiler 120 and the first side 1111 of the heat sink 111 can be adjusted according to the size of the particles in the cooling fluid. The smaller the particles in the cooling fluid, the smaller the design value of the maximum spacing M3. On the contrary, as the particles in the cooling fluid become larger, the design value of the maximum spacing M3 becomes larger.

[0090] In addition, in this embodiment, the method for increasing the spacing M3 of the opening O is to shorten the length design value of the diverter plate portion 121 of the spoiler 120, rather than increasing the spacing design value between the spoiler 120 and the heat sink 111 in the normal direction N. The reason is that increasing the spacing design value between the spoiler 120 and the heat sink 111 in the normal direction N will lead to the spacing between the heat sink 111 and another heat sink 111, thereby reducing the density of each heat sink 111 in the heat sink 10 and reducing the heat dissipation efficiency. On the contrary, as shown in this embodiment, by shortening the length design value of the diverter plate portion 121 of the spoiler 120, the original spacing design value between the spoiler 120 and the heat sink 111 in the normal direction N can be maintained to avoid the problem of reduced heat dissipation efficiency.

[0091] The specific form of the heat dissipation fins 100 is not intended to limit the present invention. In other embodiments, the specific form of the heat dissipation fins can also be adjusted according to the location and form of the heat source. Figure 6 . Figure 6 It is a plan view of the heat sink fin according to the second embodiment of the present invention. In this embodiment, the heat sink body 210 of the heat sink fin 200 may also include a heat sink 211 and two side plates 212. The two side plates 212 are respectively connected to the opposite sides of the heat sink 211. The spoiler 220 is made, for example, by a stamping process, and includes a diverter plate portion 221. The diverter plate portion 221 is connected to the heat sink 211, and the shape of the diverter plate portion 221 is, for example, rectangular. The diverter plate portion 221 of each spoiler 220 of this embodiment maintains different spacings from the two side plates 212. That is, the diverter plate portion 221 of each spoiler 220 maintains a spacing d3 with one of the side plates 212, and maintains a spacing d4 with the other side plate 212, and the spacing d4 is different from the spacing d3.

[0092] See also Figure 7 . Figure 7 FIG. 4 is a schematic plan view of a heat dissipation fin according to a third embodiment of the present invention.

[0093] In the present embodiment, the heat dissipation body 310 of the heat dissipation fin 300 may further include a heat dissipation plate 311 and two side plates 312. The two side plates 312 are respectively connected to the opposite sides of the heat dissipation plate 311. The spoiler 320 is made, for example, by a stamping process, and includes a diverter plate portion 321. The diverter plate portion 321 is connected to the heat dissipation plate 311, and the shape of the diverter plate portion 321 is, for example, rectangular. The spacing between the diverter plate portions 321 of two adjacent spoilers 320 of the present embodiment increases along a fluid direction F. That is, the spacing between the diverter plate portions 321 of two adjacent spoilers 320 in the fluid direction F is G1, G2, and G3 in sequence, and the spacing G1 is smaller than the spacing G2, and the spacing G2 is smaller than the spacing G3, but it is not limited thereto. In other embodiments, the spacing between the diverter plate portions of two adjacent spoilers decreases along a fluid direction F.

[0094] See also Figure 8 . Figure 8 FIG. 4 is a schematic plan view of a heat dissipation fin according to a fourth embodiment of the present invention.

[0095] In this embodiment, the heat dissipation body 410 of the heat dissipation fin 400 may further include a heat dissipation plate 411 and two side plates 412. The two side plates 412 are respectively connected to opposite sides of the heat dissipation plate 411. The spoiler 420 is made, for example, by a stamping process, and includes a diverter plate portion 421. The diverter plate portion 421 is connected to the heat dissipation plate 411, and the shape of the diverter plate portion 421 is, for example, a parallelogram.

[0096] See also Fig. 9 . Fig. 9 FIG. 5 is a schematic plan view of a heat dissipation fin according to a fifth embodiment of the present invention.

[0097] In the present embodiment, the heat dissipation body 510 of the heat dissipation fin 500 may further include a heat dissipation plate 511 and two side plates 512. The two side plates 512 are respectively connected to the opposite sides of the heat dissipation plate 511. The spoiler 520 is made, for example, by a stamping process, and includes a diverter plate portion 521. The diverter plate portion 521 is connected to the heat dissipation plate 511, and the shape of the diverter plate portion 521 is, for example, rectangular. In the present embodiment, the widths of the diverter plate portions 521 of these spoilers 520 in the fluid direction F increase in sequence. That is, the widths of the separation plate portions 521 of these spoilers 520 in the fluid direction F are W1, W2, W3, and W4 in sequence, and the width W1 is smaller than the width W2, the width W2 is smaller than the width W3, and the width W2 is smaller than the width W4.

[0098] See also Fig.10 . Fig.106 is a cross-sectional schematic diagram of a heat sink fin according to a sixth embodiment of the present invention. In this embodiment, the heat sink body 610 of the heat sink fin 600 includes a heat sink 611, and the heat sink 611 has a first surface 611a. The spoilers 620 protrude from the first surface 611a of the heat sink 611, and each includes a diverter plate portion 621. The protrusion amounts d5 and d6 of each diverter plate portion 621 protruding from the first surface 611a of the heat sink 611 are different.

[0099] See also Fig.11 . Fig.11 7 is a schematic plan view of a heat sink fin according to the seventh embodiment of the present invention. In this embodiment, the heat sink body 710 of the heat sink fin 700 may further include a heat sink 711 and two side plates 712. The two side plates 712 are respectively connected to the opposite sides of the heat sink 711. The spoiler 720 is made, for example, by a stamping process, and includes a diverter plate portion 721 and two connecting portions 722. The diverter plate portion 721 is connected to the heat sink 711 through the two connecting portions 722, and the shape of the diverter plate portion 721 is, for example, rectangular. The two diverter plate portions 721 of the two adjacent spoilers 720 of this embodiment maintain different spacings d7 and d8 with the same side plate 712. That is, when the diverter plate portion 721 of one of the spoilers 720 maintains a spacing d7 with one of the side plates 712, the diverter plate portion 721 of the next spoiler 720 maintains a spacing d8 with the same side plate 712, and the spacing d8 is different from the spacing d7.

[0100] In this way, the heat dissipation fin 700 can generate a turbulent flow in the horizontal direction through the blocking of the offset splitter plate portion 721 and the heat dissipation plate 711 as mentioned above, and can also generate a turbulent flow in the vertical direction through the blocking of the offset connection portion 722 .

[0101] See also Figures 12 to 15 . Fig.12 FIG. 4 is a perspective schematic diagram of a heat sink according to an eighth embodiment of the present invention. Fig.13 for Fig.12 Schematic side view of . Fig.14 for Fig.12 A side view from another perspective. Fig.15 for Fig.12 Schematic cross-section diagram of .

[0102] like Fig.12 As shown, the heat sink 80 of this embodiment includes a heat sink body 810 and a plurality of spoilers 820. The heat sink body 810 includes a heat sink 811 and two side plates 812. The two side plates 812 are respectively connected to the opposite sides of the heat sink 811 and protrude from one side of the heat sink 811.

[0103] like Figures 13 to 15As shown, the heat sink 811 has a plurality of openings P and two first side edges 8111 located at opposite sides of each opening P, and the two first side edges 8111 are orthogonal to the long side L of the heat sink 811. The spoiler 820 has two opposite second side edges 821 at a portion not connected to the heat sink 811. The two second side edges 821 are orthogonal to the long side L of the heat sink 811.

[0104] In the embodiment, the spoiler 820 is not parallel to the heat sink 811. Specifically, the spoiler 820 and the heat sink 811 form an acute angle θ. In addition, the length L1 of the spoiler 820 in the direction F2 (parallel to the long side L of the heat sink 811) is less than the length L2 of the breach P in the direction F2 (parallel to the long side L of the heat sink 811), and the orthogonal projection of the spoiler 820 on the heat sink 811 is between the two first side edges 8111, so that the second side edge 821 of the spoiler 820 and the first side edge 8111 of the heat sink 811 maintain a spacing M1 in the direction F2. The second side edge 821 of the spoiler 820 and the first side edge 8111 of the heat sink 811 maintain a spacing M1 in the direction F2 (parallel to the long side L of the heat sink 811), and the spacing M1 is not equal to zero. Furthermore, the spoiler 820 protrudes from one side of the heat sink 811 , so that a distance M2 is maintained between the spoiler 820 and the heat sink 811 in the normal direction N of the first surface 811 a .

[0105] In this embodiment, the second side 821 of the spoiler 820 and the first side 8111 of the heat sink 811 maintain a maximum distance M3, and the maximum distance M3 is greater than the distance M2 and less than the sum of the distances M1 and M2.

[0106] Taking the diameter of the particles in the cooling fluid as 0.5 to 0.6 mm as an example, the maximum spacing M3 can be designed to be 0.60 mm, for example. Since the maximum spacing M3 between the spoiler 820 and the heat sink 811 is greater than or equal to 0.60 mm, the particles in the cooling fluid will not be blocked in the gap between the spoiler 820 and the heat sink 811. In this way, in addition to improving the heat exchange efficiency of the radiator 80 through the spoiler 820, the smoothness of the flow of the cooling fluid can be maintained by designing the maximum spacing M3 between the spoiler 820 and the heat sink 811. It should be noted that the maximum spacing M3 between the second side 821 of the spoiler 820 and the first side 8111 of the heat sink 811 can be adjusted according to the size of the particles in the cooling fluid. The smaller the particles in the cooling fluid, the smaller the design value of the maximum spacing M3. Conversely, the larger the particles in the cooling fluid, the larger the design value of the maximum spacing M3.

[0107] In addition, in this embodiment, the method for increasing the spacing M3 of the opening O is to shorten the length design value of the spoiler 820 instead of increasing the spacing design value between the spoiler 820 and the heat sink 811 in the normal direction N. The reason is that increasing the spacing design value between the spoiler 820 and the heat sink 811 in the normal direction N will lead to the spacing between the heat sink 811 and another heat sink 811, thereby reducing the density of each heat sink 811 in the heat sink 80 and reducing the heat dissipation efficiency. On the contrary, as shown in this embodiment, by shortening the length design value of the diverter plate portion 121 of the spoiler 820, the original spacing design value between the spoiler 120 and the heat sink 111 in the normal direction N can be maintained to avoid the problem of reduced heat dissipation efficiency.

[0108] In addition, the heat sink 80 of this embodiment is an integrated design, but the present invention is not limited thereto. In other embodiments, the heat sink may also include a plurality of heat sink fins, and these heat sink fins are stacked or connected to form the structure of the heat sink 80 of this embodiment.

[0109] See also Figures 16 to 19 . Fig.16 FIG. 4 is a perspective schematic diagram of a heat sink according to a ninth embodiment of the present invention. Fig.17 for Fig.16 Schematic side view of . Fig.18 for Fig.16 A side view from another perspective. Fig.19 for Fig.16 Schematic cross-section diagram of .

[0110] like Fig.16 and Fig.17 As shown, the heat sink 90 of the present embodiment includes a plurality of first heat sink groups 910 and a plurality of second heat sink groups 920. Each first heat sink group 910 includes a plurality of first heat sink fins 911, a plurality of first connecting fins 912, and a plurality of second connecting fins 913. These first heat sink fins 911 maintain a spacing. These first connecting fins 912 are spaced apart on one side of these first heat sink fins 911. These second connecting fins 913 are spaced apart on the other side of these first heat sink fins 911, and these second connecting fins 913 are staggered with these first connecting fins 912. For example, one side of the first first heat sink fin 911 is connected to the second first heat sink fin 911 through the second connecting fin 913, and the other side of the second first heat sink fin 911 is connected to the third first heat sink fin 911 through the first connecting fin 912.

[0111] Each second heat dissipation group 920 includes a plurality of second heat dissipation fins 921, a plurality of third connecting fins 922, and a plurality of fourth connecting fins 923. The second heat dissipation fins 921 are spaced apart. The third connecting fins 922 are spaced apart on one side of the second heat dissipation fins 921. The fourth connecting fins 923 are spaced apart on the other side of the second heat dissipation fins 921, and the fourth connecting fins 923 are staggered with the third connecting fins 922. For example, one side of the first second heat dissipation fin 921 is connected to the second second heat dissipation fin 921 through the fourth connecting fin 923, and the other side of the second second heat dissipation fin 921 is connected to the third second heat dissipation fin 921 through the third connecting fin 922.

[0112] like Fig.18 and Fig.19 As shown, the first heat dissipation group 910 and the second heat dissipation group 920 are arranged side by side along a parallel direction D1, and any two adjacent first heat dissipation fins 911 and second heat dissipation fins 921 maintain a spacing M1 in the parallel direction D1. The spacing M1 is not equal to zero. In addition, these first heat dissipation fins 911 and these second heat dissipation fins 921 are staggered along an extension direction D2, and any two adjacent first heat dissipation fins 911 and second heat dissipation fins 921 maintain a spacing M2 in the extension direction D2. Thereby, any two adjacent first heat dissipation fins 911 and second heat dissipation fins 921 maintain a gap O. The maximum spacing M3 of this gap O is greater than the spacing M2, and less than the sum of the spacings M1 and M2.

[0113] Taking the diameter of the particles in the cooling fluid as 0.5 to 0.6 mm as an example, the maximum spacing M3 of this gap O can be designed to be 0.60 mm, for example. Since the maximum spacing M3 between the first heat sink fin 911 and the second heat sink fin 921 is greater than or equal to 0.60 mm, the particles in the cooling fluid will not be blocked in the gap O between the first heat sink fin 911 and the second heat sink fin 921. In this way, in addition to improving the heat exchange efficiency of the radiator 90 through the first heat sink fin 911 and the second heat sink fin 921, the smoothness of the flow of the cooling fluid can be maintained by designing the maximum spacing M3 between the first heat sink fin 911 and the second heat sink fin 921. It should be noted that the maximum spacing M3 between the first heat sink fin 911 and the second heat sink fin 921 can be adjusted according to the size of the particles in the cooling fluid. The smaller the particles in the cooling fluid, the smaller the design value of the maximum spacing M3. Conversely, the larger the particles in the cooling fluid, the larger the design value of the maximum spacing M3.

[0114] In this embodiment, the first connecting fin 912 is connected to the third connecting fin 922, and the second connecting fin 913 is connected to the fourth connecting fin 923, but the present invention is not limited thereto. Figure 20 to Figure 23 . Fig. 20FIG. 1 is a perspective schematic diagram of a heat sink according to a tenth embodiment of the present invention. Fig.21 for Fig. 20 Schematic side view of . Fig. 22 for Fig. 20 A side view from another perspective. Fig.23 for Fig. 20 Schematic cross-section diagram of .

[0115] like Fig. 20 and Fig.21 As shown, the heat sink 1000 of the present embodiment includes a plurality of first heat sink groups 1010 and a plurality of second heat sink groups 1020. Each first heat sink group 1010 includes a plurality of first heat sink fins 1011, a plurality of first connecting fins 1012, and a plurality of second connecting fins 1013. These first heat sink fins 1011 are spaced apart. These first connecting fins 1012 are spaced apart on one side of these first heat sink fins 1011. These second connecting fins 1013 are spaced apart on the other side of these first heat sink fins 1011, and these second connecting fins 1013 are staggered with these first connecting fins 1012. For example, one side of the first first heat sink fin 1011 is connected to the second first heat sink fin 1011 through the second connecting fin 1013, and the other side of the second first heat sink fin 1011 is connected to the third first heat sink fin 1011 through the first connecting fin 1012.

[0116] Each second heat dissipation group 1020 includes a plurality of second heat dissipation fins 1021, a plurality of third connecting fins 1022, and a plurality of fourth connecting fins 1023. The second heat dissipation fins 1021 are spaced apart. The third connecting fins 1022 are spaced apart on one side of the second heat dissipation fins 1021. The fourth connecting fins 1023 are spaced apart on the other side of the second heat dissipation fins 1021, and the fourth connecting fins 1023 are staggered with the third connecting fins 1022. For example, one side of the first second heat dissipation fin 1021 is connected to the second second heat dissipation fin 1021 through the fourth connecting fin 1023, and the other side of the second second heat dissipation fin 1021 is connected to the third second heat dissipation fin 1021 through the third connecting fin 1022.

[0117] like Fig. 22 and Fig.23As shown, the first heat dissipation group 1010 and the second heat dissipation group 1020 are arranged side by side along a parallel direction D1, and any two adjacent first heat dissipation fins 1011 and second heat dissipation fins 1021 maintain a spacing M1 in the parallel direction D1. The spacing M1 is not equal to zero. In addition, these first heat dissipation fins 1011 and these second heat dissipation fins 1021 are staggered along an extension direction D2, and any two adjacent first heat dissipation fins 1011 and second heat dissipation fins 1021 maintain a spacing M2 in the extension direction D2. Thereby, any two adjacent first heat dissipation fins 1011 and second heat dissipation fins 1021 maintain a gap O, and the maximum spacing M3 of this gap is greater than the spacing M2, and less than the sum of the spacings M1 and M2.

[0118] Taking the diameter of the particles in the cooling fluid as 0.5 to 0.6 mm as an example, the maximum spacing M3 of this gap O can be designed to be 0.60 mm, for example. Since the maximum spacing M3 between the first heat sink fin 1011 and the second heat sink fin 1021 is greater than or equal to 0.60 mm, the particles in the cooling fluid will not be blocked in the gap O between the first heat sink fin 1011 and the second heat sink fin 1021. In this way, in addition to improving the heat exchange efficiency of the radiator 1000 through the first heat sink fin 1011 and the second heat sink fin 1021, the smoothness of the flow of the cooling fluid can be maintained by designing the maximum spacing M3 between the first heat sink fin 1011 and the second heat sink fin 1021. It should be noted that the maximum spacing M3 between the first heat sink fin 1011 and the second heat sink fin 1021 can be adjusted according to the size of the particles in the cooling fluid. The smaller the particles in the cooling fluid, the smaller the design value of the maximum spacing M3. Conversely, the larger the particles in the cooling fluid, the larger the design value of the maximum spacing M3.

[0119] In this embodiment, the first connecting fin 1012 is connected to the third connecting fin 1022, but the second connecting fin 1013 is not connected to the third connecting fin 1022.

[0120] According to the heat sink and the heat sink fin of the above-mentioned embodiment, by shortening the design value of the length of the diverter plate portion of the spoiler, in addition to increasing the maximum spacing of the openings to avoid the problem of particles blocking the flow channel, the original design value of the spacing between the spoiler and the heat sink in the normal direction can be maintained to avoid the problem of reduced heat dissipation efficiency.

[0121] Furthermore, since the spoiler protrudes from the heat sink body, the splitter plate portion of the spoiler and the heat sink of the heat sink body are displaced. Therefore, the fluid is blocked by the spoiler and the heat sink body to generate turbulence, thereby improving the heat exchange efficiency between the fluid and the radiator.

[0122] Furthermore, in some embodiments, since the two diverter plate portions of two adjacent spoilers maintain different spacings from the same side plate, in addition to generating spoilers in the horizontal direction through the obstruction of the staggered diverter plate portions and the heat sink, spoilers in the vertical direction can also be generated through the obstruction of the staggered connecting portions in the spoilers.

[0123] In addition, since the height of the spoiler is smaller than the height of the heat sink, the opening between the splitter plate and the heat sink will not extend to the two side plates, thereby improving the structural strength of the heat sink fins.

[0124] Since the spoiler is separated from the heat sink body of the adjacent heat sink fins, or the height of the spoiler is less than the height of the heat sink, and the spoiler is separated from both side plates, the side plates or the heat sink will not be interfered by the diverter plate portion, and the shape of the heat sink body does not need to be changed accordingly. Therefore, it will help to make the heat sink fins easier to assemble, such as welding, and to change the design shape of the diverter plate portion.

[0125] Although the present invention is disclosed as above with the aforementioned embodiments, it is not intended to limit the present invention. Any person skilled in the art may make some changes and modifications without departing from the spirit and scope of the present invention. Therefore, the patent protection scope of the present invention shall be subject to the definition of the claims attached to this specification.

Claims

1. A radiator, characterized in that: Include: A plurality of heat sink fins, each of the heat sink fins comprises a heat sink body and at least one spoiler, the two heat sink bodies of two adjacent heat sink fins are connected so that the two adjacent heat sink bodies surround a flow channel, the spoilers are respectively connected to the heat sink bodies, and the spoilers shielded by the heat sink bodies are respectively located in the flow channels, and any spoiler is separated from the heat sink body of the adjacent heat sink fins; Each of the heat dissipation bodies comprises a heat dissipation plate and two side plates, the two side plates are respectively connected to opposite sides of the heat dissipation plate, the heat dissipation body has at least one opening, the at least one spoiler covers part of the at least one opening, and the length of the at least one spoiler in the long side direction of the heat dissipation body is less than the length of the at least one opening in the long side direction of the heat dissipation body; The heat dissipation body has two first side edges located at opposite sides of the breach, the two first side edges are non-parallel to a long side of the heat dissipation body, and the orthogonal projection of the at least one spoiler on the heat dissipation body is between the two first side edges; The at least one spoiler has two second side edges, the two second side edges are not parallel to the long side of the heat dissipation body, the spoiler protrudes from a first surface of the heat dissipation body, and the maximum distance between one of the second side edges of the heat dissipation body and the adjacent first side edge is greater than the distance between the spoiler and the heat dissipation body in a normal direction of the first surface; the spoilers protrude from the heat dissipation plates of the heat dissipation bodies respectively, the spoilers are not parallel to the heat dissipation plates, and the spoilers and the heat dissipation plates form an acute angle θ; The maximum distance between one of the second sides of the heat dissipation body and the adjacent first side is smaller than the sum of the distance between the spoiler and the heat dissipation body in the normal direction of the first surface and the distance between the spoiler and the heat dissipation body in the long side direction.

2. The heat sink according to claim 1, characterized in that The at least one spoiler is spaced the same distance from the two side plates.

3. The heat sink according to claim 1, characterized in that The at least one spoiler is spaced at different distances from the two side plates.

4. The heat sink according to claim 1, characterized in that The number of the at least one spoiler is two, and the distances between the two spoilers and the same side plate are different.

5. The heat sink according to claim 1, characterized in that The heat dissipation plate has a first surface and a second surface opposite to each other, and the at least one spoiler and the two side plates are both protruding from the first surface.

6. The heat sink according to claim 5, characterized in that The number of the at least one spoiler is plural, and the protrusion amounts of the spoilers from the first surface are the same.

7. The heat sink according to claim 5, characterized in that The number of the at least one spoiler is plural, and the protrusion amounts of the spoilers protruding from the first surface are at least two different.

8. The heat sink according to claim 1, wherein: The heat dissipation plate has a first surface and a second surface opposite to each other, and the at least one spoiler and the two side plates protrude from the first surface and the second surface respectively.

9. The heat sink according to claim 1, wherein: The number of the at least one spoiler is plural, and the intervals between at least two groups of adjacent spoilers are different.

10. The heat sink according to claim 9, characterized in that The distance between the two adjacent spoilers increases gradually along a fluid direction.

11. The heat sink according to claim 9, characterized in that The distance between the two adjacent spoilers decreases along a fluid direction.

12. The heat sink according to claim 1, characterized in that The opposite sides of the at least one spoiler are respectively surrounded by the heat dissipation plate to form an opening.

13. The heat sink according to claim 1, characterized in that The number of the at least one spoiler is plural, wherein the widths of the spoilers in the fluid direction are at least two different.

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