TWM535272U - Centrifugal fan module - Google Patents
Centrifugal fan module Download PDFInfo
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- TWM535272U TWM535272U TW105210591U TW105210591U TWM535272U TW M535272 U TWM535272 U TW M535272U TW 105210591 U TW105210591 U TW 105210591U TW 105210591 U TW105210591 U TW 105210591U TW M535272 U TWM535272 U TW M535272U
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Abstract
Description
本創作係有關於一種離心式風扇模組，特別係關於一種頂殼上設有氣孔的離心式風扇模組。 The present invention relates to a centrifugal fan module, in particular to a centrifugal fan module having a vent hole on a top case.
隨著科技產業日益發達，習知電子裝置如桌上型電腦、筆記型電腦、智慧型手機以及平板電腦等產品，已頻繁地應用於日常生活中，且這些電子裝置通常包含有用以散熱的離心式風扇模組。市面上常見的離心式風扇模組，其殼體內部通常具有舌部結構，用以使風扇產生的氣流壓力增大。 As the technology industry is increasingly developed, products such as desktop computers, notebook computers, smart phones, and tablets have been frequently used in daily life, and these electronic devices usually contain centrifugal heat that is useful for heat dissipation. Fan module. Centrifugal fan modules commonly used in the market generally have a tongue structure inside the casing for increasing the pressure of the airflow generated by the fan.
然而，風扇葉片因旋轉而產生的氣流，將撞擊風扇內的舌部結構而產生固定頻率的噪音。此外，前述電子裝置內部的電子元件之發熱功率由於因應使用者需求而逐漸增大，故離心式風扇模組勢必需要增加風量以提升散熱效果，如此將隨之產生更高頻率的噪音並讓使用者感到不舒適。 However, the airflow generated by the fan blades due to the rotation will hit the tongue structure within the fan to produce a fixed frequency of noise. In addition, the heating power of the electronic components inside the electronic device is gradually increased according to the needs of the user. Therefore, the centrifugal fan module is required to increase the air volume to improve the heat dissipation effect, which will generate higher frequency noise and allow use. Feeling uncomfortable.
為了克服前述習知的問題，本新型提供了一種離心式風扇模組，包括一底殼，平行於一參考面；一側壁，連接該底殼；一葉輪，活動地連接該底殼，並可相對於該底殼旋轉；以及一頂殼，連接該側壁且具有一第一氣孔，其中該第一氣孔位於該葉輪的外緣與該頂殼的外緣之間，且由該葉輪所產生之一部分氣流通過該第一氣孔而流出該離心式風扇模組。 In order to overcome the above-mentioned conventional problems, the present invention provides a centrifugal fan module including a bottom case parallel to a reference surface, a side wall connecting the bottom case, and an impeller movably connecting the bottom case, and Rotating relative to the bottom case; and a top case connecting the side wall and having a first air hole, wherein the first air hole is located between an outer edge of the impeller and an outer edge of the top case, and is generated by the impeller A portion of the airflow exits the centrifugal fan module through the first air vent.
於一實施例中，前述的葉輪之中心與該第一氣孔之中心定義出一氣孔方向軸，且該開口平行於一參考軸，其中該參考軸與該氣孔方向軸於該參考面上之投影形成一夾角，且該夾角小於或等於180度。 In one embodiment, the center of the impeller and the center of the first air hole define an axis of the air hole direction, and the opening is parallel to a reference axis, wherein the reference axis and the axis of the air hole are projected on the reference surface. An angle is formed and the angle is less than or equal to 180 degrees.
於一實施例中，前述的頂殼更具有一第一凹陷部，鄰近該側壁以及該第一氣孔。 In an embodiment, the top case further has a first recess adjacent to the sidewall and the first air hole.
於一實施例中，前述的第一凹陷部具有一圓形結構並環繞該葉輪。 In an embodiment, the aforementioned first recess has a circular structure and surrounds the impeller.
於一實施例中，前述的第一凹陷部具有一弧形結構，且圍繞該葉輪之角度小於或等於180度。 In one embodiment, the aforementioned first recess has an arcuate structure and the angle around the impeller is less than or equal to 180 degrees.
於一實施例中，前述的第一凹陷部具有一弧形結構，且圍繞該葉輪之角度介於180度與360度之間。 In one embodiment, the aforementioned first recess has an arcuate structure and the angle around the impeller is between 180 and 360 degrees.
於一實施例中，前述的離心式風扇模組更包括兩個導流元件，設置於該頂殼並鄰近該第一氣孔，其中該部分氣流流過該些導流元件之間。 In one embodiment, the centrifugal fan module further includes two flow guiding elements disposed on the top case and adjacent to the first air hole, wherein the partial air flow flows between the flow guiding elements.
於一實施例中，前述的葉輪之中心與該第一氣孔之中心定義出一氣孔方向軸，該頂殼更具有一第一導流部，連接該第一凹陷部且鄰接該第一氣孔，其中該第一導流部導引該部分氣流沿一導引方向軸流出該離心式風扇模組，且該導引方向軸與該氣孔方向軸在該參考面上之投影重合。 In an embodiment, the center of the impeller and the center of the first air hole define a directional axis of the air hole, and the top case further has a first guiding portion connected to the first recess and adjacent to the first air hole. The first flow guiding portion guides the partial airflow out of the centrifugal fan module along a guiding direction axis, and the guiding direction axis coincides with the projection of the air hole direction axis on the reference surface.
於一實施例中，前述的葉輪之中心與該第一氣孔之中心定義出一氣孔方向軸，該頂殼更具有一第一導流部，連接該第一凹陷部且鄰接該第一氣孔，其中該第一導流部導引該部分氣流沿一導引方向軸流出該離心式風扇模組，且該導引方 向軸與該氣孔方向軸於該參考面上之投影形成一銳角。 In an embodiment, the center of the impeller and the center of the first air hole define a directional axis of the air hole, and the top case further has a first guiding portion connected to the first recess and adjacent to the first air hole. The first flow guiding portion guides the part of the airflow to flow out of the centrifugal fan module along a guiding direction axis, and the guiding side The projection of the axis and the axis of the venting axis on the reference surface forms an acute angle.
於一實施例中，前述的底殼具有一第二氣孔以及一第二凹陷部，其中該第二氣孔鄰近該第二凹陷部，且該第二凹陷部鄰近該側壁。 In one embodiment, the bottom case has a second air hole and a second recess, wherein the second air hole is adjacent to the second recess, and the second recess is adjacent to the side wall.
1‧‧‧離心式風扇模組 1‧‧‧Centrifugal fan module
20‧‧‧底殼 20‧‧‧ bottom case
201‧‧‧底面 201‧‧‧ bottom
21‧‧‧第二氣孔 21‧‧‧Second air holes
22‧‧‧第二凹陷部 22‧‧‧Second depression
30‧‧‧側壁 30‧‧‧ side wall
40‧‧‧葉輪 40‧‧‧ Impeller
401‧‧‧葉輪外緣 401‧‧‧ Impeller rim
50‧‧‧頂殼 50‧‧‧ top shell
501‧‧‧頂殼外緣 501‧‧‧Top shell outer edge
502‧‧‧頂面 502‧‧‧ top surface
51‧‧‧第一氣孔 51‧‧‧First air hole
52‧‧‧第一凹陷部 52‧‧‧First depression
53‧‧‧第一導流部 53‧‧‧First Drainage Department
60‧‧‧開口 60‧‧‧ openings
70‧‧‧導流元件 70‧‧‧ flow guiding element
F‧‧‧主要氣流 F‧‧‧main airflow
f1、f2‧‧‧部分氣流 F1, f2‧‧‧ partial airflow
C1‧‧‧參考軸 C1‧‧‧ reference axis
C2‧‧‧氣孔方向軸 C2‧‧‧ vent direction axis
C3‧‧‧導引方向軸 C3‧‧‧ guiding direction axis
h1‧‧‧第一高度 H1‧‧‧first height
h2‧‧‧第二高度 H2‧‧‧second height
a1‧‧‧第一夾角 A1‧‧‧first angle
a2‧‧‧第二夾角 A2‧‧‧second angle
a‧‧‧夾角 A‧‧‧ angle
第1A圖為本新型一實施例之離心式風扇模組的俯視圖。 FIG. 1A is a plan view of a centrifugal fan module according to an embodiment of the present invention.
第1B圖為第1A圖中x-x線段之剖視圖。 Fig. 1B is a cross-sectional view of the x-x line in Fig. 1A.
第2A圖為本新型另一實施例之離心式風扇模組的俯視圖。 2A is a top plan view of a centrifugal fan module according to another embodiment of the present invention.
第2B圖為第2A圖中x-x線段之剖視圖。 Fig. 2B is a cross-sectional view of the x-x line in Fig. 2A.
第2C圖為本新型另一實施例之離心式風扇模組的俯視圖。 2C is a top plan view of a centrifugal fan module according to another embodiment of the present invention.
第2D圖為本新型另一實施例之離心式風扇模組的俯視圖。 2D is a top plan view of a centrifugal fan module according to another embodiment of the present invention.
第2E圖為本新型另一實施例之離心式風扇模組的俯視圖。 2E is a top plan view of a centrifugal fan module according to another embodiment of the present invention.
第3A圖為本新型另一實施例之離心式風扇模組的俯視圖。 3A is a top plan view of a centrifugal fan module according to another embodiment of the present invention.
第3B圖為第3A圖中x-x線段之剖視圖。 Fig. 3B is a cross-sectional view of the x-x line in Fig. 3A.
第4A圖為本新型另一實施例之離心式風扇模組的俯視圖。 4A is a top plan view of a centrifugal fan module according to another embodiment of the present invention.
第4B圖分別為第4A圖中s-s線段之剖視圖。 Fig. 4B is a cross-sectional view of the s-s line segment in Fig. 4A, respectively.
第4C圖分別為第4A圖中離心式風扇模組的立體圖。 Fig. 4C is a perspective view of the centrifugal fan module of Fig. 4A, respectively.
第4D圖則為第4C圖中的M1部分放大圖。 The 4D graph is an enlarged view of the M1 portion in Fig. 4C.
第5A圖為本新型另一實施例之離心式風扇模組的俯視 圖。 5A is a plan view of a centrifugal fan module according to another embodiment of the present invention Figure.
第5B圖為第5A圖中離心式風扇模組的立體圖。 Fig. 5B is a perspective view of the centrifugal fan module of Fig. 5A.
第5C圖則為第5B圖中的M2部分放大圖。 Fig. 5C is an enlarged view of a portion M2 in Fig. 5B.
第6圖為本新型另一實施例之離心式風扇模組的剖視圖。 Figure 6 is a cross-sectional view showing a centrifugal fan module according to another embodiment of the present invention.
有關本新型之前述及其他技術內容、特點與功效，在以下配合參考圖式之一較佳實施例的詳細說明中，將可清楚的呈現。以下實施例中所提到的方向用語，例如：上、下、左、右、前或後等，僅是參考附加圖式的方向。因此，使用的方向用語是用來說明並非用來限制本新型。 The foregoing and other technical aspects, features and advantages of the present invention will be apparent from the following description of the preferred embodiments of the invention. The directional terms mentioned in the following embodiments, such as up, down, left, right, front or back, etc., are only directions referring to the additional drawings. Therefore, the directional term used is used to describe that it is not intended to limit the invention.
首先請參閱第1A、1B圖，其中第1A圖為本新型一實施例之離心式風扇模組1的俯視圖，第1B圖為第1A圖中x-x線段之剖視圖。如第1A、1B圖所示，離心式風扇模組1主要包括一底殼20、一側壁30、一葉輪40、一頂殼50以及一開口60，其中底殼20以及頂殼50平行於XY平面(參考面)，側壁30連接底殼20以及頂殼50，葉輪40活動地連接底殼20並可相對於底殼20旋轉。應了解的是，沿X軸方向延伸之開口60則形成於離心式風扇模組1之一側，並位於底殼20、側壁30以及頂殼50之間，由葉輪40旋轉所產生之一主要氣流F可通過開口60而流出離心式風扇模組1。舉例而言，離心式風扇模組1可設置於一筆記型電腦內部，用以將筆記型電腦所產生的熱迅速地排出。 First, please refer to FIGS. 1A and 1B. FIG. 1A is a plan view of a centrifugal fan module 1 according to an embodiment of the present invention, and FIG. 1B is a cross-sectional view taken along line x-x of FIG. 1A. As shown in FIGS. 1A and 1B, the centrifugal fan module 1 mainly includes a bottom case 20, a side wall 30, an impeller 40, a top case 50, and an opening 60. The bottom case 20 and the top case 50 are parallel to the XY. The plane (reference surface), the side wall 30 connects the bottom case 20 and the top case 50, and the impeller 40 is movably coupled to the bottom case 20 and rotatable relative to the bottom case 20. It should be understood that the opening 60 extending along the X-axis direction is formed on one side of the centrifugal fan module 1 and is located between the bottom case 20, the side wall 30 and the top case 50, and is mainly produced by the rotation of the impeller 40. The air flow F can flow out of the centrifugal fan module 1 through the opening 60. For example, the centrifugal fan module 1 can be disposed inside a notebook computer to quickly discharge the heat generated by the notebook computer.
於本實施例中，如第1A圖所示，頂殼50上形成有一第一氣孔51，一參考軸C1通過葉輪40之中心並平行於開口60，另一氣孔方向軸C2則定義為葉輪40之中心與第一氣孔51 中心的連線，其中參考軸C1以及氣孔方向軸C2於XY平面上之投影形成一第一夾角a1。如第1B圖所示，由葉輪40旋轉所產生之一部分氣流f1可通過第一氣孔51而流出離心式風扇模組1，其中第一氣孔51與開口60係位於葉輪40之兩相反側，且第一氣孔51位於頂殼50的外緣(頂殼外緣501)以及葉輪40的外緣(葉輪外緣401)之間。 In the present embodiment, as shown in FIG. 1A, a first air hole 51 is formed in the top case 50, a reference axis C1 passes through the center of the impeller 40 and is parallel to the opening 60, and the other air hole direction axis C2 is defined as the impeller 40. Center and first air hole 51 The center line, wherein the projection of the reference axis C1 and the hole direction axis C2 on the XY plane forms a first angle a1. As shown in FIG. 1B, a portion of the airflow f1 generated by the rotation of the impeller 40 can flow out of the centrifugal fan module 1 through the first air hole 51, wherein the first air hole 51 and the opening 60 are located on opposite sides of the impeller 40, and The first air hole 51 is located between the outer edge of the top case 50 (the outer case outer edge 501) and the outer edge of the impeller 40 (the outer edge of the impeller 401).
舉例而言，前述主要氣流F以及部分氣流f1可分別吹向不同的熱源(例如中央處理器、顯示卡等電子元件)，藉此降低該些熱源的溫度，其中第一氣孔51可根據熱源所在位置而設計，且第一夾角a1小於或等於180度。此外，本新型並不限定第一氣孔51的尺寸，亦不限定第一氣孔51僅能有一個，第一氣孔51之數量可根據熱源的數量而訂。 For example, the foregoing main airflow F and part of the airflow f1 may be respectively blown to different heat sources (for example, electronic components such as a central processing unit, a display card, etc.), thereby reducing the temperature of the heat sources, wherein the first air holes 51 may be according to the heat source. Designed in position, and the first angle a1 is less than or equal to 180 degrees. In addition, the present invention does not limit the size of the first air hole 51, nor does it limit that there may be only one first air hole 51. The number of the first air holes 51 may be set according to the number of heat sources.
再請一併參閱第2A、2B圖，其中第2A圖為本新型另一實施例之離心式風扇模組1的俯視圖，第2B圖為第2A圖中x-x線段之剖視圖。如第2A、2B圖所示，本實施例之離心式風扇模組1主要包括一底殼20、一側壁30、一葉輪40、一頂殼50以及一開口60。需特別說明的是，本實施例與第1A、1B圖之實施例的主要差別係在於：本實施例中之頂殼50上更形成有一第一凹陷部52(如第2A圖所示)，第一凹陷部52朝向底殼20凹陷，且鄰近側壁30且具有一圓形結構並環繞葉輪40。 Please refer to FIG. 2A and FIG. 2B together. FIG. 2A is a plan view of the centrifugal fan module 1 according to another embodiment of the present invention, and FIG. 2B is a cross-sectional view of the x-x line segment in FIG. 2A. As shown in FIGS. 2A and 2B, the centrifugal fan module 1 of the present embodiment mainly includes a bottom case 20, a side wall 30, an impeller 40, a top case 50, and an opening 60. It should be noted that the main difference between the embodiment and the embodiment of FIGS. 1A and 1B is that a first recess 52 is formed on the top case 50 in the embodiment (as shown in FIG. 2A). The first recess 52 is recessed toward the bottom case 20 and adjacent to the side wall 30 and has a circular configuration and surrounds the impeller 40.
由第2B圖更可看出，第一氣孔51鄰近第一凹陷部52，部分氣流f1自頂面502與第一凹陷部52所形成之高度差區域吹出，其中第一凹陷部52相對於頂面502形成一第一高度h1。應了解的是，第一凹陷部52造成離心式風扇模組1外圍部 分的截面積變小(如第2B圖所示)，使得由葉輪40旋轉所產生之氣流在離心式風扇模組1內部的壓力朝外側方向增大。舉例而言，離心式風扇模組1之高度約為10mm，第一高度h1則約為2mm。 It can be seen from FIG. 2B that the first air hole 51 is adjacent to the first recess portion 52, and the partial air flow f1 is blown out from the height difference region formed by the top surface 502 and the first recess portion 52, wherein the first recess portion 52 is opposite to the top portion. Face 502 forms a first height h1. It should be understood that the first recess 52 causes the peripheral portion of the centrifugal fan module 1 The sectional area of the minute becomes small (as shown in Fig. 2B), so that the air flow generated by the rotation of the impeller 40 increases in the outward direction in the pressure inside the centrifugal fan module 1. For example, the height of the centrifugal fan module 1 is about 10 mm, and the first height h1 is about 2 mm.
應說明的是，本新型並不限定第一凹陷部52必須為一圓形結構，於一實施例中，第一凹陷部52也可具有一弧形結構。如第2C、2D圖所示，第一凹陷部52圍繞葉輪40之一部分並相對於葉輪40形成一第二夾角a2，其中第2C圖所示之第二夾角a2則約介於180度與360度之間，第2D圖所示之第二夾角a2則可小於或等於180度。此外，本新型亦不限定第一氣孔51的位置，如第2E圖所示，前述第一夾角a1大致為180度。 It should be noted that the present invention does not limit that the first recessed portion 52 must have a circular structure. In an embodiment, the first recessed portion 52 may also have an arcuate structure. As shown in FIGS. 2C and 2D, the first recess 52 surrounds a portion of the impeller 40 and forms a second angle a2 with respect to the impeller 40, wherein the second angle a2 shown in FIG. 2C is approximately 180 degrees and 360 degrees. Between degrees, the second angle a2 shown in FIG. 2D may be less than or equal to 180 degrees. Further, the present invention does not limit the position of the first air hole 51. As shown in FIG. 2E, the first angle a1 is substantially 180 degrees.
再請一併參閱第3A、3B圖，其中第3A圖為本新型另一實施例之離心式風扇模組1的俯視圖，第3B圖為第3A圖中x-x線段之剖視圖。如第3A、3B圖所示，本實施例之離心式風扇模組1主要包括一底殼20、一側壁30、一葉輪40、一頂殼50、一開口60以及兩個導流元件70。 Please refer to FIG. 3A and FIG. 3B together. FIG. 3A is a plan view of the centrifugal fan module 1 according to another embodiment of the present invention, and FIG. 3B is a cross-sectional view of the x-x line segment in FIG. 3A. As shown in FIGS. 3A and 3B, the centrifugal fan module 1 of the present embodiment mainly includes a bottom case 20, a side wall 30, an impeller 40, a top case 50, an opening 60, and two flow guiding members 70.
需特別說明的是，本實施例與第2A、2B圖之實施例的主要差別係在於：本實施例之離心式風扇模組1更包括兩個凸出於頂殼50的導流元件70，該些導流元件70大致具有長方體結構且設置於頂殼50上並鄰近第一氣孔51，如第3A圖所示，兩個導流元件70分別設置於第一氣孔51的兩相反側邊。應了解的是，導流元件70可用以引導部分氣流f1之流向，當部分氣流f1自離心式風扇模組1內流出後，可沿著兩個導流元件70之間流過並集中吹向特定之熱源。然而，本新型並不限定導流元件 70的尺寸以及材料，導流元件70可因應熱源位置或是電子裝置內部結構而設計合適的尺寸以及材料。 It should be noted that the main difference between the embodiment and the embodiment of FIG. 2A and FIG. 2B is that the centrifugal fan module 1 of the embodiment further includes two flow guiding elements 70 protruding from the top case 50. The flow guiding elements 70 have a substantially rectangular parallelepiped structure and are disposed on the top case 50 and adjacent to the first air holes 51. As shown in FIG. 3A, the two flow guiding elements 70 are respectively disposed on opposite sides of the first air hole 51. It should be understood that the flow guiding element 70 can be used to guide the flow of the partial airflow f1. After the partial airflow f1 flows out of the centrifugal fan module 1, the flow can be flowed along the two flow guiding elements 70 and concentratedly blown toward each other. Specific heat source. However, the present invention does not limit the flow guiding element. The size and material of the 70, the flow guiding element 70 can be designed to the appropriate size and material depending on the location of the heat source or the internal structure of the electronic device.
再請一併參閱第4A-4C圖，其中第4A圖為本新型另一實施例之離心式風扇模組1的俯視圖，第4B圖為第4A圖中s-s線段之剖視圖，第4C圖分別為第4A圖中離心式風扇模組1的立體圖，第4D圖則為第4C圖中的M1部分放大圖。如第4A、4B圖所示，本實施例中之離心式風扇模組1主要包括一底殼20、一側壁30、一葉輪40、一頂殼50以及一開口60。 Please refer to FIG. 4A-4C, wherein FIG. 4A is a plan view of the centrifugal fan module 1 according to another embodiment of the present invention, and FIG. 4B is a cross-sectional view of the ss line segment in FIG. 4A, and FIG. 4C is respectively Fig. 4A is a perspective view of the centrifugal fan module 1, and Fig. 4D is an enlarged view of a portion M1 in Fig. 4C. As shown in FIGS. 4A and 4B, the centrifugal fan module 1 of the present embodiment mainly includes a bottom case 20, a side wall 30, an impeller 40, a top case 50, and an opening 60.
需特別說明的是，本實施例與第2A、2B圖之實施例的主要差別係在於：本實施例中之頂殼50上形成有一第一導流部53，用以導引氣體由第一氣孔51流出離心式風扇模組1。如第4C、4D圖所示，第一導流部53連接第一凹陷部52，其中第一氣孔51形成於第一凹陷部52以及第一導流部53之間，且第一導流部53使部分氣流f1可沿一導引方向軸C3流出離心式風扇模組1並吹向熱源處，於本實施例中之導引方向軸C3與氣孔方向軸C2在平行XY平面上之投影重合。 It should be particularly noted that the main difference between the embodiment and the embodiment of FIGS. 2A and 2B is that a first flow guiding portion 53 is formed on the top case 50 in the embodiment for guiding the gas by the first The air hole 51 flows out of the centrifugal fan module 1. As shown in FIGS. 4C and 4D, the first flow guiding portion 53 is connected to the first recess portion 52, wherein the first air hole 51 is formed between the first recess portion 52 and the first flow guiding portion 53, and the first flow guiding portion 53, the partial airflow f1 can flow out of the centrifugal fan module 1 along a guiding direction axis C3 and is blown toward the heat source. In this embodiment, the guiding direction axis C3 and the air hole direction axis C2 are projected on the parallel XY plane. .
再請一併參閱第5A-5C圖，其中第5A圖為本新型另一實施例之離心式風扇模組1的俯視圖，第5B圖為第5A圖中離心式風扇模組1的立體圖，第5C圖則為第5B圖中的M2部分放大圖。本實施例與第4A-4D圖之實施例的主要差別係在於：本實施例中之導引方向軸C3與氣孔方向軸C2在XY平面上之投影形成一夾角a，於本實施例中之夾角a為一銳角，亦即第一導流部53使部分氣流f1可沿著相對於氣孔方向軸C2傾斜之方向流出離心式風扇模組1並吹向特定之熱源。 Please refer to FIG. 5A-5C, wherein FIG. 5A is a plan view of a centrifugal fan module 1 according to another embodiment of the present invention, and FIG. 5B is a perspective view of the centrifugal fan module 1 of FIG. 5A. The 5C plan is an enlarged view of the M2 portion in Fig. 5B. The main difference between this embodiment and the embodiment of FIG. 4A-4D is that the projection direction axis C3 and the hole direction axis C2 in the XY plane form an angle a in the embodiment, which is in the embodiment. The angle a is an acute angle, that is, the first flow guiding portion 53 allows the partial airflow f1 to flow out of the centrifugal fan module 1 in a direction inclined with respect to the air hole direction axis C2 and blown to a specific heat source.
再請參閱第6圖，其中該圖為本新型另一實施例之離心式風扇模組1的剖視圖。本實施例與第2A、2B圖之實施例的主要差別係在於：本實施例中之底殼20上形成有一第二氣孔21以及一第二凹陷部22，且第二氣孔21鄰近第二凹陷部22，其中由葉輪40旋轉所產生之一部分氣流f1自頂面502與第一凹陷部52所形成之高度差區域流出，另有一部分氣流f2自底殼20之底面201與第二凹陷部22所形成之高度差區域流出。 Please refer to FIG. 6, which is a cross-sectional view of the centrifugal fan module 1 according to another embodiment of the present invention. The main difference between the embodiment and the embodiment of FIGS. 2A and 2B is that a second air hole 21 and a second recess 22 are formed on the bottom case 20 in the embodiment, and the second air hole 21 is adjacent to the second recess. a portion 22 in which a portion of the airflow f1 generated by the rotation of the impeller 40 flows out from a height difference region formed by the top surface 502 and the first recess portion 52, and a portion of the airflow f2 from the bottom surface 201 and the second recess portion 22 of the bottom case 20 The formed height difference area flows out.
應了解的是，第二凹陷部22相對於底面201形成一第二高度h2，且第二高度h2與第一高度h1大致相等，惟本新型並不限定第一、第二高度h1、h2必須相等，由於第一、第二高度h1、h2可造成離心式風扇模組1內部截面積朝外側方向變小，因此離心式風扇模組1內部的氣流壓力會朝外側方向增大。此外，在本實施例之底殼20上更可形成類似第4A、5A圖中第一導流部53的導引結構，且如第3A圖所示之導流元件70亦可設置於第二凹陷部22並鄰近該第二氣孔21，用以協助導引氣體流向特定之熱源。 It should be understood that the second recess 22 forms a second height h2 with respect to the bottom surface 201, and the second height h2 is substantially equal to the first height h1, but the present invention does not limit the first and second heights h1, h2. If the first and second heights h1 and h2 cause the internal cross-sectional area of the centrifugal fan module 1 to decrease toward the outer side, the airflow pressure inside the centrifugal fan module 1 increases toward the outer side. In addition, a guiding structure similar to the first guiding portion 53 in FIGS. 4A and 5A can be formed on the bottom case 20 of the embodiment, and the flow guiding member 70 as shown in FIG. 3A can also be disposed in the second. The recess 22 is adjacent to the second air hole 21 to assist in guiding the gas to a specific heat source.
綜上所陳，本新型提供一種離心式風扇模組，其中頂殼上形成一第一氣孔，由葉輪所產生之一部分氣流可通過第一氣孔而流出離心式風扇模組，藉此降低熱源處的溫度。此外，本新型之離心式風扇模組更可選擇性地設置凹陷結構、導流部或是設置導流元件，使風扇內部的氣流壓力朝外側方向增大，以有效地並將氣流導向熱源，並大幅提升散熱效率。 In summary, the present invention provides a centrifugal fan module in which a first air hole is formed in the top case, and a part of the air flow generated by the impeller can flow out of the centrifugal fan module through the first air hole, thereby reducing the heat source. temperature. In addition, the centrifugal fan module of the present invention can selectively provide a recessed structure, a flow guiding portion or a flow guiding element, so that the air pressure inside the fan increases toward the outer side to effectively guide the airflow to the heat source. And greatly improve the heat dissipation efficiency.
雖然本新型以前述之實施例揭露如上，然其並非用以限定本新型。本新型所屬技術領域中具有通常知識者，在 不脫離本新型之精神和範圍內，當可做些許之更動與潤飾。因此本新型之保護範圍當視後附之申請專利範圍所界定者為準。 Although the present invention has been disclosed above in the foregoing embodiments, it is not intended to limit the present invention. A person of ordinary skill in the art to which the present invention pertains, Without departing from the spirit and scope of this novel, some changes and refinements can be made. Therefore, the scope of protection of this new type is subject to the definition of the scope of the patent application.
1‧‧‧離心式風扇模組 1‧‧‧Centrifugal fan module
30‧‧‧側壁 30‧‧‧ side wall
40‧‧‧葉輪 40‧‧‧ Impeller
50‧‧‧頂殼 50‧‧‧ top shell
501‧‧‧頂殼外緣 501‧‧‧Top shell outer edge
502‧‧‧頂面 502‧‧‧ top surface
51‧‧‧第一氣孔 51‧‧‧First air hole
60‧‧‧開口 60‧‧‧ openings
F‧‧‧主要氣流 F‧‧‧main airflow
f1‧‧‧部分氣流 F1‧‧‧ part of the airflow
C1‧‧‧參考軸 C1‧‧‧ reference axis
C2‧‧‧氣孔方向軸 C2‧‧‧ vent direction axis
a1‧‧‧第一夾角 A1‧‧‧first angle
Claims (10)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW105210591U TWM535272U (en) | 2016-07-14 | 2016-07-14 | Centrifugal fan module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW105210591U TWM535272U (en) | 2016-07-14 | 2016-07-14 | Centrifugal fan module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| TWM535272U true TWM535272U (en) | 2017-01-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| TW105210591U TWM535272U (en) | 2016-07-14 | 2016-07-14 | Centrifugal fan module |
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| Country | Link |
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| TW (1) | TWM535272U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI672443B (en) * | 2018-03-08 | 2019-09-21 | 宏碁股份有限公司 | Fan structure and electronic assembly |
-
2016
- 2016-07-14 TW TW105210591U patent/TWM535272U/en unknown
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI672443B (en) * | 2018-03-08 | 2019-09-21 | 宏碁股份有限公司 | Fan structure and electronic assembly |
| US11035378B2 (en) | 2018-03-08 | 2021-06-15 | Acer Incorporated | Fan structure and electronic assembly |
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