1280324 九、發明說明： 【無明所屬之技術領域】 。本毛明係關於-種風扇及扇框，特別關於一種能降 低°呆音之風扇及扇框。 ：【先前技術】 : 隨著電子產品朝向高性能、高頻率、高速度與輕薄 化的迅速發展，造成電子產品的發熱溫度越來越高，因 •而容易產生不穩定現象’影響產品可靠度，所以現有之 、電子產品常利用風扇作為散熱裝置。 • %參照圖1所示，—種習知的風扇1包括-葉輪 11馬達12以及一扇框13。扇框13係包括一框體 131、複數個靜葉132及一基座133，該等靜葉132之 二端係分別與該框體131及該基座133連結；該馬達 12係套設於該基座133上，用以驅動該葉輪11轉動。 圖係為該扇框13之示意圖，圖孔係為該等靜葉132 _之翼型展開之示意圖，各該等靜葉132之翼型外形及間 距係為相同。 i 雖然靜葉的設計可有效導引氣體的流向而提升風 :之政熱效率’然而’在風扇高速運轉時會形成高頻嗓 音，造成此現象之原因之一是因為在扇框上之複數個靜 葉之翼型及間距係為相同，使得氣流經過該等靜葉時會 形成相同的壓力變化，而靜葉表面的壓力變化就是噪音 源之一，所以在各靜葉上會形成幾乎一致的噪音，並造 成疊加的情況。習知解決此高頻噪音問題之方法是減少 !28〇324 =:=:::1只能消極的減少高頻_ 散熱效率。 泵且不利於風扇之 因此，如何提供一種風扇及 葉上因疊加而引如+-， η化以解决在扇框之靜 散a ^ 員噪音的問題，且不影響風扇之 政熱效率，是當前重要課題之一。 ^之 【發明内容】 ⑽於上述課題，本發明之目的為提供— 扇框尚頻噪音的問題， 解夫 及扇框。 喊且不〜響風扇之散熱效率之風扇 ，達上述目的’依本發明之—種扇框包括一框體、 及複數個靜葉組。該基座係設置於該框體内， 母靜葉組包括複數個靜葉’該等靜葉之二端分別設置 於該框體及該基座之間;其中每-靜葉組中至少有= ^係與其他靜葉財之至少—靜葉料形、尺寸或前傾 角不相同。 為達上述目的，依本發明之一種風扇包括一葉輪、 -扇框以及-馬達。該扇框係包括—框體、—基座及複 數個靜葉組’該基座係設置於該框體内，每—靜葉組包 括複數個靜葉’ §亥等靜葉之二端分別設置於該框體及該 基座之間；其中每―靜葉組中至少有-靜葉係與其他靜 葉組中之至 > -靜葉的外形、尺寸或前傾角不相同。 承上所述，因依本發明之一種風扇及扇框藉由至少 二組靜葉之外形、尺寸或前傾角不同之結構設置，且該 1280324 專靜葉之間距亦可不相等， 在各靜葉表面上分別形成不 情況，避免產生高頻噪音， 使得氣流經過該等靜葉時， 同的壓力變化，降低疊加的 且不影響風扇之散熱效率。 : 【實施方式】 _ =下將參照相_式’說明依據本發明較佳實施例 種風扇及扇框，其中相㈣元件心_ 戒加以說明。 '自4參照w 3所^’依據本發明較佳實施例之-種風 -係包括—葉輪2卜-馬達22以及—扇框23。該葉 輪21係為一轴流式風扇之葉輪；該扇框23係包括一框 體231、二個靜葉組232及一設置於該框體μ!内之基 座233。在本實施例中，各該等靜葉組232係分別具有 不相同之一靜葉2321、2322，使得該等靜葉232卜2322 總數為6 ;每一該等靜葉組232之靜葉2321、2322之 • 一端分別與該框體231及該基座233連結。該框體231、 忒基座233及該等靜葉組232係可為一體成型。該馬達 22係套設於該基座233上，用以與該葉輪21產生磁作 - 用而驅動該葉輪21轉動。 圖4係為該扇框23之下視示意圖，圖5係為該扇 框之局部剖視示意圖。請參照圖4所示，該等靜葉組 232係依序設置，使得該等靜葉2321、2322形成交錯 设置’另外’該等靜葉232丨、2322係可以不同的前傾 角連結於該基座233。在本實施例中，該等靜葉2321 1280324 二該等靜葉之間距亦可不相等，使得氣流經過該等靜葉 ¥，在各靜葉表面上分別形成不同的壓力變化，降低二 ^的情況’避免產生高㈣音，且不影響風扇之散熱二 ^上所述僅為舉例性，而非為限·者。任何未脫 本备明之精神與範疇，而對其進行之等效修改或變 ，均應包含於後附之申請專利範圍中。 【圖式簡單說明】 圖1為一種習知風扇之立體分解圖； 圖2a為一種習知扇框之示意圖； 圖2b為-種習知靜葉結構之翼型之示意圖； 分解Ξ;3為依據本發明較佳實施例之一種風扇之立體 圖4為圖3之扇框的下視示意圖； 圖5為圖3之扇框的局部剖視示意圖； 為本發明具有不同翼型之靜葉示意圖； ^ 7為本發明具有不同弦長之靜葉示意圖； 示意圖，· Λ本發明具有不同翼型之靜葉任意交錯排列 示意^。9為本發明具有不同弦長之靜葉規則間隔排列 元件符號說明： 1 ^ 2 風扇 9 1280324 11、21 葉輪 12 > 22 馬達 13、23、23’ 扇框 131、 231 框體 232、234、235 靜葉組 133、233 基座 132、 2321、2322、2341、2351 靜葉 Z 1 - Z 2 前傾角 Z S 間隔角 SI、S2 弦長 101280324 IX. Description of invention: [Technical field to which Wuming belongs]. This is a fan and fan frame, especially for a fan and fan frame that can reduce the dullness. : [Prior Art]: With the rapid development of electronic products towards high performance, high frequency, high speed and light weight, the heating temperature of electronic products is getting higher and higher, and it is easy to produce instability due to the impact of product reliability. Therefore, existing electronic products often use a fan as a heat sink. • Referring to Fig. 1, a conventional fan 1 includes an impeller 11 motor 12 and a frame 13. The frame 13 includes a frame 131, a plurality of vanes 132, and a base 133. The ends of the vanes 132 are respectively coupled to the frame 131 and the base 133. The motor 12 is sleeved on the frame The base 133 is configured to drive the impeller 11 to rotate. The figure is a schematic view of the fan frame 13, and the figure is a schematic diagram of the airfoil expansion of the vane 132_, and the airfoil shape and spacing of each of the vanes 132 are the same. i Although the design of the vane is effective to guide the flow of gas and enhance the wind: the thermal efficiency of the 'however' will form a high-frequency arpeggio when the fan is running at high speed. One of the reasons for this phenomenon is because of the multiple on the fan frame. The airfoil and the spacing of the vanes are the same, so that the same pressure change will occur when the airflow passes through the vanes, and the pressure change on the vane surface is one of the noise sources, so it will form almost uniform on each vane. Noise and cause superimposed situations. The conventional solution to this high-frequency noise problem is to reduce !28〇324 =:=:::1 to negatively reduce the high-frequency _ heat dissipation efficiency. The pump is not conducive to the fan. Therefore, how to provide a kind of fan and leaf on the leaf due to superposition, such as +-, η, to solve the problem of static noise in the fan frame, and does not affect the thermal efficiency of the fan, is currently One of the important topics. [Disclosed Summary] (10) In view of the above problems, an object of the present invention is to provide a problem of the frequency of the fan frame, the solution and the fan frame. A fan that yells and does not dampen the heat dissipation efficiency of the fan, and achieves the above object. The fan frame according to the present invention includes a frame body and a plurality of static blade groups. The base is disposed in the frame, and the mother vane group includes a plurality of vanes. The two ends of the vanes are respectively disposed between the frame and the base; wherein each of the vane groups has at least = ^ is at least as good as other static leaves - the shape, size or anteversion of the vane. To achieve the above object, a fan according to the invention comprises an impeller, a fan frame and a motor. The fan frame includes a frame body, a base, and a plurality of static blade groups. The base system is disposed in the frame body, and each of the static blade groups includes a plurality of static leaves. Between the frame and the pedestal; wherein at least - the stationary leaf system in each of the stationary leaf groups is different from the shape, size or anteversion angle of the stationary blade in the other static blade group. According to the above description, a fan and a fan frame according to the present invention are arranged by at least two sets of structures having different shapes, sizes or forward rake angles, and the distance between the 1280324 and the special vanes may not be equal. The surface is formed separately to avoid high-frequency noise, so that the same pressure changes when the airflow passes through the stationary vanes, which reduces the superposition and does not affect the heat dissipation efficiency of the fan. [Embodiment] _ = A fan and a fan frame according to a preferred embodiment of the present invention will be described with reference to a phase _ formula, wherein the phase (four) component core _ is described. According to a preferred embodiment of the present invention, the wind type includes an impeller 2 - a motor 22 and a fan frame 23. The leaf wheel 21 is an impeller of an axial flow fan; the frame 23 includes a frame 231, two vane groups 232, and a base 233 disposed in the frame μ!. In this embodiment, each of the vane group 232 has a different one of the vanes 2321, 2322, such that the total number of the vanes 232, 2322 is 6; each of the vanes 232 of the vane 2321 One end of the 2322 is connected to the frame 231 and the base 233, respectively. The frame 231, the crucible base 233, and the vane group 232 can be integrally formed. The motor 22 is sleeved on the base 233 for generating magnetic force with the impeller 21 to drive the impeller 21 to rotate. Fig. 4 is a schematic view showing the lower side of the frame 23, and Fig. 5 is a partial cross-sectional view showing the frame. Referring to FIG. 4, the vane groups 232 are sequentially disposed such that the vanes 2321, 2322 are staggered and the other vanes 232, 2322 can be joined to the base by different rake angles. Block 233. In this embodiment, the distance between the vanes 2321 1280324 and the vanes may not be equal, so that the airflow passes through the vanes, and different pressure changes are formed on the surfaces of the vanes, thereby reducing the situation of the two vanes. 'Avoiding a high (four) tone, and does not affect the heat dissipation of the fan. The above is only an example, not a limitation. Any changes or modifications to the spirit and scope of this book shall be included in the scope of the appended patent application. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an exploded perspective view of a conventional fan; FIG. 2a is a schematic view of a conventional fan frame; FIG. 2b is a schematic view of a conventional airfoil structure; FIG. 5 is a partial cross-sectional view of the fan frame of FIG. 3; FIG. 5 is a partial cross-sectional view of the fan frame of FIG. 3 according to the preferred embodiment of the present invention; ^ 7 is a schematic diagram of a stationary blade having different chord lengths according to the present invention; Schematic, Λ The present invention has arbitrary staggered arrangement of vanes of different airfoils. 9 is a regular arrangement of elements with different chord lengths according to the invention. Symbols are: 1 ^ 2 fan 9 1280324 11, 21 impeller 12 > 22 motor 13, 23, 23' fan frame 131, 231 frame 232, 234, 235 stationary blade group 133, 233 pedestal 132, 2321, 2322, 2341, 2351 stationary blade Z 1 - Z 2 forward inclination angle ZS spacing angle SI, S2 chord length 10