TWI231417B - Heat sink module and fan structure thereof and fan body - Google Patents

Abstract

The present invention provides a heat sink module, a fan structure thereof, and a fan body, which is used for heat dissipation on a heat source, such as a CPU. The heat sink module includes a heat absorption unit and a fan structure; wherein, the heat absorption unit, such as a device with fins, is attached on the CPU, and the fan structure is configured on the heat absorption unit. The fan structure includes a shell and a fan body; wherein, the fan body is configured on the shell in a rotatable manner. When the heat absorption unit of the heat sink module absorbed the heat from the CPU H, the fan structure will blow on the heat absorption unit, so as to dissipate the heat. The fan body comprises a base and a plurality of blades, and each blade has at least a blade surface portion and a plurality of guide portions, and each guide portion is configured on the blade surface portion. Each guide portion can be in a linear or a curved shape, and in a parallel or symmetrical manner with different combinations to be recessed into or protruded from above the blade.

Description

1231417 V. Description of the invention (1) 1. The technical field to which the invention belongs is a heat dissipation module, a fan structure and a fan body thereof, in particular, μ types are used on the blades of the fan body to utilize different patterns and chain degrees. The design is' effective Solve the problem of noise and system heat dissipation. 2. The previous technology With the increasing speed of the computer front-end bus, 333MHz to 400MΗζ, from 4_Ηζ to 533MΗζ (· 80 0MHz as early as the month, etc.), at present, it seems that the day has been scratched by thunder. 4 ★ Dan is from 3MHz to σ The power generation motherboard architecture has concentrated all the systems and power on the same motherboard, and the (Mobile) market demand is based on the manual movement of α u ^ The interior of the case can no longer reserve enough self-deficient convection doors ... The related political and thermal technologies have faced major design bottlenecks. The cooling mechanism of all IIΐ notebook computers adopts forced convection for cooling. Once the use of the fan in the interim i, when the maximum static pressure and flow ^ is increased, it will actually get greater broad band noise (br〇ad band noise) and narrow band noise (narr〇w band n〇ise). III. Summary of the Invention: In view of this, the object of the present invention is to provide a heat dissipation module, f-fan structure and fan body " Sichuan is for the central processing of notebook PCs (Central pr0cessing Unit, CPU) for heat dissipation The fan structure and the fan body structure in the module use the change of the boundary layer.

1231417 V. Description of the invention (2) The design method of layer) effectively reduces noise. For example, the Leib π & & & & & > Cooperating System of the present invention can be directed to a heat source (e.g., CPU, chip cage, and warehouse-Shikou-ri-θ) on a motherboard. ^ ^ ^ Day, Day, and Month 4) Order related heat dissipation, or its dagger has a special heat source and must be connected to the similar structure of the lamp heat dissipation by the fan, warehouse, tk only Jitian fan. ^ Ming is mainly characterized by the formation of sandy surface roughness and sand texture on the blades of the fan body (different design 'so as to effectively improve the adhesion between the air and the blade surface: soil') and can reduce The phenomenon of early separation of air flow (separated flow) occurs. With different roughness and different patterns on the blades of the fan body " X juice, a variety of different wake palpitations can be generated, thereby reducing the cause of wake The resulting f-frequency noise (dlscrete tone) ° Wider-come 'using the sandy surface on the blades of the fan body or different veins (different veins), the fan structure is combined by the fan body system It can be applied to a variety of heat dissipation modules or other occasions that need to be used for political heat. # This solves the problems of political heat and noise caused by high-speed components, and improves the technological progress of the semiconductor industry. To achieve the design of a thin, light and short heat sink. The surname M ί is to achieve the above purpose, the present invention provides a heat sink module and a fan thereof: a structure / fan body, and the heat sink module is used for a heat source (host The central processing unit (cpu) on the board is used. The heat dissipation module includes a heat absorption unit and a fan structure. Among them, the suction unit (for example, the component with fins) is Attached to the central management

1231417 Description of the invention (3) Above the unit 五 Five and the fan structure includes a housing + + ° structure is arranged on the suction unit μ dagger]] double 骽 Xing fan body, 1… early. Wind knot

Place on the shell. When the fan system is capable of treating the heat of the early vulture with II f / 7 + _L, the 7L absorbs the heat from the puffer, so as to achieve the dispersal of the feathers: the structure can absorb heat The unit is 4 < a of the present invention. Heart piece. The base system has a body system including-a base and a plurality of leaf extensions, and each leaf has at least a blade. The leaf system is respectively provided on the leaf surface by the base surface of the base. = Face and plural guides, each of which guides the face and is formed in J :: The department is formed by the hollows protruding from the leaves of each blade protruding from the ridges of the leaves of each blade, or each guide Department of the Ministry. In one embodiment, the leaf surfaces of the blades are integrally formed. In the preferred embodiment of the present invention, each of the guide portions may be in a linear shape or on each blade. Ding 3 is symmetrical or the like and is recessed or protruded again. In the embodiment of the present invention in which the pen is recessed in each blade, each guide portion of the fan body is a guide portion of the body. Complex pits (dimPles), or fan structures. · ,,, The plurality of sand grains protruding from the leaf surface of each blade In order to make the Li ^ of the present invention clearly understandable, the following special steam description and other purposes, features, and advantages can be described in more detail as follows: + ~~ better Examples, and in conjunction with the attached drawings, make four implementations

0696-A20067TWF (Nl); QCI-92072-TlV; alexli • Ptd

Page 7 V. Description of the invention (4) [Application examples of the present invention] The fan body of the present invention can be applied to various examples. For example: the central processing unit of a notebook computer (Ce = structure,

Unit: CPU) 's heat dissipation' or other similar structures with the right name ~ Processing fan for heat dissipation. · 疋…, the source must be based on the wind in Figure 8 and related descriptions. 太 屮 田田 丨 Mom 丨 1 昍 ， 卜卜 埒 刼 # λ Λ is the application for the cooling module M, plus a ΓΡπ means η, Λ performs heat dissipation for a heat source Η (for example, CPU daily chip net) on a motherboard P. First Embodiment [Components of this embodiment] Please refer to FIG. 1 and FIG. 2A. = The figure is a schematic cross-sectional view showing the fan body η and ir 糸 in the first embodiment of the present invention according to the line segment A-A in FIG. 1 for cutting an earlier blade in the fan body F1. Him / body F1 includes a base 10 and a plurality of blades. Two = 1 structures, and a perimeter on the stomach outside the base 10:. The hard-numbered blades 11 are respectively extended from the base surface 100 in a radial manner. In each 荦 h] 11Π, 1Π, β ^ ^ Hecha tablet 11 has two leaf faces 110, 110 and a plurality of ν leading parts llla, J beans 1 1 0, 1 1 0, which are reported to the opposite side Λ Recognition M /, τ ^ & 1 is formed on both sides of the blade 11, and by the windward surface of the body F1 during rotation, that is, the leaf surface 1 directly collides with the air, and the plurality of guide portions 1113, 1 1 1 b is to form each leaf surface 1 1 〇

1231417 V. Description of the invention (5) In this embodiment, the number of the plurality of guide portions 111a and 111b on each leaf surface 1 10 is two, and the two guide portions 111a and 111b substantially represent each other. The geometric arrangement state of the spaced apart and mutually parallel manner, that is, the two guide portions 1 1 1 a, 1 1 1 b extend in a mutually parallel manner along the longitudinal direction L of the blade 11. It can be seen from FIG. 2A that the cross section of the blade 11 is substantially rectangular in shape, and the two guide portions 111 a and 111 b are grooves recessed in the blade surface 1 10 of the blade 11. In this embodiment, the two guide portions 11 1 a and 1 1 1 b are linear grooves formed on the leaf surface portion 11 〇. [Modified example of this embodiment] FIG. 2B is a schematic diagram showing the blade 1 Γ in another modified example derived from the blade 11 in FIG. 2A. Different from the blade 11 in FIG. 2A, the two guide portions 111a 'and 111b' in FIG. 2B are integrally formed in a manner that they are spaced apart from each other and protrude from the blade surface 110 of the blade 1 1 '. A linear bump on the blade surface 110 of the blade 11 '. Second Embodiment [Components of this embodiment] Please refer to FIG. 3 and FIG. 4A. FIG. 3 is a perspective view showing a fan body F 2 in a second embodiment of the present invention, and FIG. 4A is a view showing a section of a single blade 21 in the fan body F 2 according to a line segment BB in FIG. 3. Schematic cross-section.

0696-A20067TWF (Nl); QCI-92072-TW; a 1 ex 1i η.ptd Page 9 1231417 V. Description of the invention (6) As can be seen in Figures 3 and 4A, the two guides 21 la and 21 lb It is a groove recessed in the leaf surface 2 1 0 of the blade 21. Different from the fan body F 1 in the first embodiment, the two guide portions 2 11 a and 2 1 1 b on each blade 21 of the fan body F2 in FIG. 3 are substantially present with each other. In a parallel spaced, radial arrangement state, that is, the two guide portions 2 1 1 a and 2 1 1 b extend in a pair parallel to each other and inclined at an angle α to the longitudinal direction L of the blade 21. In this embodiment, the two guide portions 2 1 1 a and 2 1 1 b are linear grooves formed on the blade surface portion 2 10. Other components having the same function and shape structure as those in the first embodiment adopt the same component symbols, and will not be described again here. [Modified example of this embodiment] Fig. 4B is a schematic diagram showing a blade 2 1 'in another modified example derived from the blade 21 of Fig. 4A. The difference from the blade 21 in FIG. 4A is that the two guide portions 2 11 a ′ and 2 11 b ′ in FIG. 4B are protruding from the blade surface 210 of the blade 1 1 ′ at a distance from each other. This is a linear bump integrally formed on the blade surface 210 of the blade 21 '. Third Embodiment [Components of this embodiment] Please refer to FIG. 5 and FIG. 6A. FIG. 5 is a perspective view showing a fan body F 3 in a third embodiment of the present invention, and FIG. 6A is a view showing a fan book according to a line segment C-C in FIG. 5.

0696-A20067TWF (Nl); QCI-92072-TW; alexlin.ptd Page 10 1231417 V. Description of the invention (7) Sectional view of the single blade 31 in the body F 3. As can be seen from Figs. 5 and 6A, the two guide portions 311a and 311b are recessed in the grooves of the blade surface 3 1 0 of the blade 31. Different from the fan body F1 in the first embodiment and the fan body F 2 in the second embodiment, the two guide portions 311a and 311b on each blade 31 of the fan body F3 in FIG. 5 are It appears on the leaf surface 3 1 0 of the blade 31 in a spaced-apart and symmetrical manner, that is, the two guide portions 3 11 a and 3 11 b are substantially in a curved pattern that gradually expands. , Extending along and relative to the longitudinal direction L. In this embodiment, the two guide portions 3 1 1 a and 3 1 1 b are curved grooves formed on the leaf surface portion 3 1 0. Other components having the same function and shape structure as those in the first embodiment adopt the same component symbols, and will not be described again here. [Modified example of this embodiment] FIG. 6B is a schematic diagram showing a blade 3 Γ in another modified example derived from the blade 31 in FIG. 6A. The difference from the blade 31 in FIG. 6A is that the two guide portions 3 11 a ′ and 3 11 b ′ in FIG. 6B protrude from the blade surface 310 of the blade 3 1 ′ at a distance and symmetry from each other. Curved bumps integrally formed on the blade surface portion 310 of the blade 31 '. Fourth Embodiment [Components of this embodiment] Please refer to FIG. 7A.

0696-A20067TWF (Nl); QCI-92072-TW; a 1 ex 1i η.ptd P.11 1231417 V. Description of the invention (8)-Figure 7A shows the 扃 body in the fourth embodiment of the present invention The ρ4 three-dimensional f 'Ϊ 中' fan body F4 includes a plurality of blades 41 'and each blade 41 has a dogwood surface 41. ... · by the first? It can be seen from the figure that the plurality of guide bow portions 411 are formed on the leaf surface 4 1 0 of the sepal 41 in a spaced manner. Different from the above embodiments, the plural guides 4 11 on the blades 41 of the fan body F4 in FIG. 7A are unequally spaced and not symmetrical with each other on the mass, and are evenly and freely distributed. The method is presented on the leaf surface portion 41 of the blade 41, that is, the plurality of guide portions m are arranged on the substrate in a manner of being recessed in the leaf surface portion 41 of the blade 41 to be installed in the lamp. In this embodiment, the plurality of guide portions 41 i are a plurality of dimples recessed in the leaf surface 41 of each blade 4 in an integral molding manner. Others have the same functions and types as those in the first embodiment. Each element of the structure has the same element symbol and will not be described here. [Modification of this embodiment] Please refer to FIG. 7B. Fig. 7B is a perspective view showing another modified example derived from the fan body f4 of Fig. 7a, in which the fan body 4 includes a plurality of blades 41 '. The difference from the blade 4 in FIG. 7A is that the plurality of guide portions 411 in FIG. 7B are integrally formed in a plurality of sand-like structures (p a r t i c 1 e s) protruding from each blade 41 and the blade surface portion 41. [Application Examples of the Present Invention]

0696-A20067nVF (Nl); QCI-92072-TlV; alexlin.ptd Page 12 1231417 V. Description of the invention (9) Figure 8 shows the three-dimensional application of the heat dissipation module μ according to the present invention to dissipate heat from a heat source. schematic diagram. The heat source η here is mainly based on a central processing unit (CPU) (hereinafter referred to as a “central processing unit η”) on the main board P of the notebook computer. The heat dissipation module M includes a The heat absorbing unit s and a fan structure κ, wherein the heat absorbing unit, s_ (for example, a component with fins) is attached to the central processing unit Η, and the fan structure κ is provided on the heat absorbing unit s The fan structure K includes a housing F0 and a fan body, wherein the fan body F1 is rotatably disposed on the housing.

In this application example, the fan structure κ in the cooling module M is described with the fan body F1 in the first embodiment. Other implementations such as F2, F3, and F4 can also be applied to fans. In the structure κ, Yu 1 will not be described again. When the heat-absorbing unit S of the heat-dissipating module M absorbs the heat from the central processing unit ，, the fan structure κ can send -70 to the heat-absorbing unit s, so as to achieve the purpose of heat dissipation. ^ Dingren

In addition, due to the design of the sandy surface and different textures on the blades of the fan body, this can effectively improve the air-to-surface adhesion and reduce the early separation of the air flow (the 'separation' phenomenon occurs) In addition, by designing different thicknesses on the blades of the fan body / il the same pattern can change the boundary layer to produce a variety of unique patterns', which can reduce the narrow-band noise caused by the wake. With the sand-like surface on the blades of the fan body or different patterns, the fan structure composed of the fan body can be applied to various types

1231417 V. Description of the invention (10) Modules, or other occasions where fan cooling is needed, so as to solve the problem of system heat dissipation and noise caused by high-speed components. Although the present invention has been disclosed as above with preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make changes and retouching without departing from the spirit and scope of the present invention. The scope of protection shall be determined by the scope of the patent application.

0696-A20067TW (Nl); QCI-92072-TW; alexlin.ptd Page 14 1231417 Brief Description of Drawings Figure 1 is a perspective view showing the fan body (F1) in the first embodiment of the present invention; Figure 2A It is a schematic diagram of the fan body (a single blade (1 1) of F 1 Guangzhong) is cut according to the line segment (AA) in FIG. 1; FIG. 2B is a diagram showing the blade (1 1) according to FIG. 2A Schematic diagram of the blade (1 1 ') in another modified example; FIG. 3 is a perspective view showing the fan body (F2) in the second embodiment of the present invention; FIG. 4A is a view showing the blade in accordance with FIG. 3 The line segment (BB) is a schematic diagram of a single blade (21) in the fan body (F2); FIG. 4B shows a blade (in another modified example derived from the blade (21) in FIG. 4A) 2 1 ′); FIG. 5 is a perspective view showing the fan body (F3) in the third embodiment of the present invention; FIG. 6A is a view showing the fan body (F) according to the line segment (CC) in FIG. 3) A schematic view of a single blade (3 1) in section; Figure 6B shows the blade (31) according to Figure 6A A schematic diagram of a blade (3Γ) in another modified example derived; FIG. 7A is a perspective view of a fan body (F4) according to a fourth embodiment of the present invention, wherein the fan body (F4) includes a plurality of blades ( 41); FIG. 7B is a perspective view showing another modified example derived from the fan body (F4) according to FIG. 7A, wherein the fan body (F4) includes a plurality of blades (4 1 '); and FIG. 8 It means that the heat dissipation module (M) according to the present invention is applied to a

0696-A20067TWF (Nl); QCI-92072-, nV; alexlin.ptd Page 15 1231417 The schematic diagram illustrates the heat source (Η) for heat dissipation. The heat dissipation module (M) includes a heat absorption unit (S). And a fan structure (K), and a fan body (F1) in the fan structure (K). DESCRIPTION OF SYMBOLS 1 0 to base 100 to base surface 11, 11 'to blade 11 0, 11 0' to leaf surface portion 111a, 111b to guide portion 111a ', 111b' to guide portion 21, 21 'to blade 2 1 0 ~ Leaf surface 21 la, 21 lb ~ Guide 21 la ', 21 lb' ~ Guide 31, 31 '~ Blade 3 1 0 ~ Leaf surface 31 la, 31 lb ~ Guide 31 la', 31 lb '~ Guide 41, 41' ~ Leaf 4 1 0 ~ Leaf surface A -A, BB, CC ~ Segment F0 ~ Housing FI, F2, F3, F4 ~ Fan body

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Claims (1)

1231417 VI. Scope of patent application The body includes: having a base surface; and 1. a fan and a base portion, and the sheet has an upper surface. 2. The guide is in the leaf 3. The guide is in the 4. The guide and other blades 5. The guide is in the form of 6. The guide and other blades 7. The guide is unfolded 8. At least as requested If the application is based on a concave surface, if the application is based on a convex leaf, as in the application, the leaf as in the application, as in the application, as on the application, the leaf as in the application, as on the application, the curve type, as in the application, and the application for a plurality of blades. The base surface of the base portion extends, and each of the leaf surface portions and the plurality of guide portions are provided in the fan body described in item 1 of the patent scope of the leaf surface, wherein the leaf surfaces trapped in the leaves Way instead of one piece. The fan body according to item 1 of the patent scope, wherein the leaves are integrally formed on the leaf surface by the manner of the leaf surface of the leaves. The fan body described in item 1 of the patent scope, wherein the at least one guide portion is substantially presented on the face in a linear pattern. The fan body according to item 1 of the patent scope, wherein the two guide portions are above the leaf surface of the blade which are substantially spaced apart from each other and parallel to each other. The fan body according to item 1 of the patent scope, wherein the at least one guide portion is substantially presented on the face in a curved pattern. The fan body according to item 6 of the patent, wherein the guides are gradually presented on the leaf surface of the leaves along the lengthwise direction of the leaves. The fan body described in item 1 of the patent scope, wherein 0696-A20067TWF (Nl); QCI-92072-rnV; alexlin.ptd Page 18 1231417 VI. At least two guides in the patent application guides are substantially spaced from each other and are symmetrical to each other That leaves the face above. 9 · The fan body according to item 1 of the scope of patent application, wherein the guides are a plurality of pits which are evenly distributed and recessed on the leaf surface of the leaves. 10 · The fan body according to item 1 of the scope of the patent application, wherein the guides are a plurality of sand-granular structures uniformly distributed and protruding from the leaf surface of the leaves. 11. A fan structure comprising: a casing; and a fan body rotatably disposed on the casing, the fan body includes a base and a plurality of blades, wherein the base has a base surface, and The tea pieces are respectively extended from the base surface of the base portion. Each of the tea pieces has at least one leaf surface portion and a plurality of guide portions are disposed on the leaf surface portion. 1 2. The fan structure according to item 11 of the scope of patent application, wherein the guide portions of the fan body are integrally formed on the leaf surface portion by being recessed in the leaf surface portion of the blade. 1 3. The fan structure according to item 11 of the scope of patent application, wherein the guide portions of the fan body are integrally formed on the blades of the blades in a manner protruding from the surface of the blades of the blades. Leaves above the face. 14. The fan structure according to item 11 of the scope of patent application, wherein at least one of the guides of the fan body is substantially presented in a straight line on the leaf surface of the leaves. Above. 1 5. The fan structure described in item 11 of the scope of patent application, wherein: 0696-A20067TWF (Nl); QCI-92072-71V; a 1 ex 1i η.ptd page 19 1231417_ Sixth, patent application scope At least two of the guides of the fan body are essentially Presented on the leaf surface of the leaves in a spaced and parallel manner. 16 · The fan structure described in item 11 of the scope of patent application, wherein at least one of the guides of the fan body is substantially presented in a curved pattern to the blades of the blade. Leaves above the face. 17 · The fan structure according to item 16 of the scope of patent application, wherein two of the guides are presented along the lengthwise direction of the blade in a gradually expanding curve pattern. Wait on the leaf surface of the leaf. 1 8. The fan structure according to item 11 of the scope of patent application, wherein at least two of the guides of the fan body are present on the blades in a substantially spaced and symmetrical manner. That leaves the face above. 19. The fan structure according to item 11 of the scope of the patent application, wherein the guide portions of the fan body are a plurality of pits which are uniformly distributed and recessed in the leaf surface portion of the leaves. 20. The fan structure according to item 11 of the scope of the patent application, wherein the guide portions of the fan body are a plurality of sand-granular structures uniformly distributed and protruding from the leaf surface of the leaves. 2 1. A heat dissipation module for dissipating heat from a heat source, the heat dissipation module includes: a heat absorption unit disposed on the heat source; a fan structure disposed on the heat absorption unit, the fan structure including A casing and a fan body. The fan system is rotatably disposed on the casing. The fan body includes a base and a plurality of blades, wherein the base has a base surface, and the blades are respectively composed of The base of the base extends 0696-A20067W (Nl); QCI-92072-TW; alexlin.ptd Page 20 1231417___ 6. The scope of patent application is extended, and each of these leaves has at least one leaf surface and a plurality of guide portions are arranged on the leaf surface. 2 2. The heat dissipation module according to item 21 of the scope of patent application, wherein the guides of the fan body are integrally formed in a manner of being recessed or protruding from the leaf surface of the blade Above the leaf face. 0696-A20067TWF (Nl); QCI-92072-rnV; alexlin.ptd Page 21