M424403 五、新型說明： 【新型所屬之技術領域】 本創作涉及一種風扇 涉及一種落地或臺式風扇 座風扇。 特別但並不排他地，本創作 諸如桌用屬、塔式扇以及底 【先前技術】 傳統的家用風㈣常包括一組安^於繞軸旋轉的 葉片或㈣，以及用於旋轉所述葉片組以產生 的驅動裝置。空氣流的運動和迴圈產生了 ‘‘風ς，，' = 或微風，因此讓使用者體驗到冷卻的效果，之β由>、執 量透過傳導以及蒸發而被驅散了。葉片總體 件中，籠狀件在防止使用者與風扇使用中和旋轉中^ 片接觸的同時允許空氣流流經殼體。 ^ 樓W0 2009/030879描述了 -種不使用被籠狀 的葉片以從風扇組件中將空氣吹出的風扇組件。=肩 地’該風扇組件包括圓柱形基部以及環狀喷嘴。代 基部收納有馬達驅動的葉輪，以將主空氣流吸圓桂形 中，環狀喷嘴被連接至基部，且還包括環狀^部，基部 氣流通過該嘴部從風扇喷射出。喷嘴限定一開口 主空 開口由嘴部喷出的主空氣流吸入風扇組件所處的學$過 的空氣’增強主空氣流。該喷嘴包括位於所述嘴中 的科恩達表面（Coanda surface)，其被配置為引導 方 流。科恩達表面繞開口的中心軸線對稱地延伸，q 4 圓柱形或截頭圓錐形輪 由風扇裝置產生的空氣流為具有 廓的環形射流的形式。 【新型内容】 在第一方面中，本創作提供了一 =用:產生流經喷嘴的主空氣流的丄喷= 、將主工喊噴出的至少一個出口，且限定二孔，透 過孔來自風扇外部的輔助线流被從至少—個出口喷出 的主Γ=Γ吸入。為了允許使用者調節混合空氣流的至 少-個參數，該風扇包括至少部分地位於噴嘴的孔中的 插入件。 該混合空氣流的至少—個參數可包括混合空氣流的 輪廓取向S向、流動速率（例如以升/秒為單位）以 及速度中的至少-個。因此，透過調節處於喷嘴孔内的 插入件的位置，使用者可調節諸如混合空氣從風扇向前 吹出的方向’例如，這是為了將空氣流朝向或遠離風扇 附近的人傾斜。可㈣地或附加地，插人件可擴展或限 制混合空氣流的輪廓，以增加或減少位於空氣流路徑内 的使用者的數量。作為另-種可替換方案，插入件可改 變空氣流的取向，以提供範圍較大的用於冷卻多個使用 者的混合空氣流。 插入件可在㈣的孔内運動，以允許使用者迅速改 變如混合空氣流從風扇朝向前噴出的方向。例如，插入 件可滑過噴嘴，和/或沿噴嘴的孔滑動，或可在噴嘴的孔 M424403 内旋轉。喷嘴可包括用於引導插入件相對于孔運動的裝 置。 插入件可具有任何適合以需要的方式改變空氣流動 的形狀。例如，插入件可包括一個或多個可以位於喷嘴 的孔内的部分，以使混合空氣流以特定的方向偏轉，例 如朝向或遠離位於風扇一側的人偏轉。在一個實施例 中，插入件可以包括多個互相連接的部分，其同時位於 喷嘴的孔内。這些部分可具有大致相同的形狀，或者它 們可以具有不同形狀。該部分可被繞軸線配置。當插入 件位於喷嘴内時，插入件較佳地大致和喷嘴的孔同軸 線。該部分可繞軸線規則或不規則地間隔開。 插入件可部分地位於喷嘴的孔内，這例如是使得插 入件的一部分從喷嘴的前端向前伸出，以便沿特定的方 向引導部分或全部混合空氣流。可替換地，插入件可大 致完全位於喷嘴的孔内。喷嘴的孔較佳朝向孔的前端向 外漸縮，因此插入件較佳通過喷嘴的前端插入孔内。插 入件可為環形形狀。插入件可包括位於喷嘴的前沿之上 的邊緣，以將插入件保持在喷嘴的孔内。 喷嘴的該至少一個出口可位於噴嘴的後部附近，且 被配置為通過喷嘴的孔喷出主空氣流。如前文所述，喷 嘴較佳地包括限定喷嘴的孔的表面，且該至少一個出口 較佳地被配置為將主空氣流引導掠過喷嘴的該表面上 方。較佳地，該至少一個出口被配置為將主空氣流引導 掠過其上的表面包括科恩達表面（Coanda surface)。科恩 6 M424403 達表面為已知類型的表面，從接近於該表面的輸出孔口 排出的流體流動掠過該表面呈現科恩達效應。流體趨向 於緊靠該表面流動，幾乎“緊貼”或“緊靠”於該表 面。科恩達效應為一種已經證實且廣泛記載的流體帶走 手段，通過該效應主空氣流被引導掠過科恩達表面。關 於科恩達表面特徵的描述以及掠過科恩達表面的流體流 動的效應可參考諸如 Reba所著的Scientific American, Volume 214，June 1966 第 84 至 92 頁的文 章。藉由科恩達表面的使用，透過孔而從風扇外被引入 的空氣數量，係經由喷嘴喷出的空氣而增加。 在一較佳的實施例中，通過風扇的喷嘴形成空氣 流。在下文中，該空氣流被稱作主空氣流。主空氣流被 從喷嘴的該至少一個出口喷出，且較佳地掠過科恩達表 面。主空氣流帶走喷嘴四周的空氣，起空氣放大器的作 用，以便將主空氣流和帶入的空氣流一起提供給使用 者。帶入的空氣在此被稱作輔助空氣流。辅助空氣流被 從喷嘴嘴部四周的室内空間、區域或外部環境中吸入， 且替代地，從環繞風扇的其他區域中吸入，且主導地流 經由喷嘴限定的孔。被引導掠過科恩達表面的主空氣流 和帶入的輔助空氣流一起相當於從喷嘴的孔的前端向前 喷出或吹出的混合或總空氣流。 科恩達表面可包括位於該至少一個出口下游的擴散 器部分。擴散器部分較佳地繞軸線延伸，且較佳漸縮地 朝向或遠離該軸線。 7 M424403 插入件較佳地覆蓋噴嘴的科恩達表面的至少一 分’因此可被以罩（mask)的形式提供，該罩可被插入 喷嘴的孔卜插人件錄地覆蓋科恩達表面的擴散 分的至少一部/刀。當插入件包括多個互相連接的八 B夺’每-個部分可覆蓋科恩達表面賴散器部分: 局部。 艰' 作為使用多個互相連接的部分提供插人件的替 案’插入件可包括限孔的表面，當插人件位於噴嘴 中時’來自風扇外部的輔助空氣流借助從嘴部噴出的主 空氣流穿過祕吸人。這餘人件可覆蓋科恩達表面的 環狀部分，較佳地覆蓋科恩達表面的擴散器部分的至少 一部分，且更較佳地覆蓋科恩達表面的大致整個擴散器 部分。當插入件位於喷嘴中時，插入件的孔較佳地和喷 嘴的孔大體上為共軸線《噴嘴的該至少一個出口被較佳 地配置為引導主空氣流穿過插入件的孔。 插入件的表面較佳地繞軸線延伸，且該表面的至少 一部分較佳地朝向所述軸線傾斜。該插入件的表面相對 於軸線的傾斜度較佳地不同于科恩達表面的擴散器部分 的傾斜度。在此情形中’喷嘴的孔内的插入件的位置邛 改變混合空氣流的流量（fl0Wrate)和逮度。例如，在 插入件的表面相對於轴線的傾斜角度小於科恩達表面的 擴散器部分相對於轴線的傾斜角度的情況下，當插入件 位於噴嘴内時’混合空氣流的流量將減小，但混合空氣 流的流迷將增加。 M424403 〇致全部插入件表面都可相對 斜，因此表面可具有圓叔 里1貝 範園内。可替換地，傾斜角可相對: 軸線魏。通過相對料線變純斜角，t插人件位於 喷嘴的孔中時，由風扇產吐 A 、 兩屋生的空亂流可具有非圓柱形或M424403 V. New description: [New technical field] This creation relates to a fan involving a floor or desktop fan seat fan. Particularly, but not exclusively, the present invention, such as table genus, tower fan, and bottom [previous art] conventional household winds (4) often include a set of blades or (4) rotating around the axis, and for rotating the blades Group the resulting drive unit. The movement of the air stream and the loop create a ‘‘wind,,’ = or breeze, so the user is experienced the effect of cooling, which is dissipated by the conduction, conduction, and evaporation. In the blade assembly, the cage allows air flow through the housing while preventing the user from contacting the fan during use with the rotating plate. ^ Building W0 2009/030879 describes a fan assembly that does not use caged vanes to blow air out of the fan assembly. = shoulder' The fan assembly includes a cylindrical base and an annular nozzle. The base base houses a motor-driven impeller for sucking the main air into the shape of the dome, the annular nozzle being connected to the base, and further including an annular portion through which the base airflow is ejected from the fan. The nozzle defines an opening. The main air opening is caused by the main air flow ejected from the nozzle into the fan-over air in which the fan assembly is located to enhance the main air flow. The nozzle includes a Coanda surface located in the mouth that is configured to direct a square flow. The Coanda surface extends symmetrically about the central axis of the opening, and the q4 cylindrical or frustoconical wheel is in the form of a circular jet of air generated by the fan assembly. [New content] In the first aspect, the present invention provides a use of: generating a main air flow through the nozzle, squirting, squirting at least one outlet, and defining two holes, the through hole from the fan The external auxiliary line flow is sucked by the main Γ=Γ ejected from at least one of the outlets. To allow the user to adjust at least one parameter of the mixed air flow, the fan includes an insert at least partially located in the bore of the nozzle. At least one parameter of the mixed air stream may include at least one of a profile orientation S-direction of the mixed air stream, a flow rate (e.g., in liters per second), and a velocity. Thus, by adjusting the position of the insert within the nozzle bore, the user can adjust the direction in which the mixed air is blown forward from the fan', e.g., to tilt the airflow toward or away from the person near the fan. Alternatively or additionally, the insert member may expand or limit the profile of the mixed air flow to increase or decrease the number of users located within the air flow path. As a further alternative, the insert can change the orientation of the air flow to provide a larger range of mixed air streams for cooling multiple users. The insert can be moved within the aperture of (d) to allow the user to quickly change the direction in which the mixed air flow is ejected from the fan toward the front. For example, the insert can slide over the nozzle and/or slide along the orifice of the nozzle or can rotate within the orifice M424403 of the nozzle. The nozzle can include means for guiding movement of the insert relative to the aperture. The insert can have any shape suitable to change the flow of air in a desired manner. For example, the insert may include one or more portions that may be located within the bore of the nozzle to deflect the flow of mixed air in a particular direction, such as toward or away from a person on one side of the fan. In one embodiment, the insert can include a plurality of interconnected portions that are simultaneously located within the bore of the nozzle. These portions may have substantially the same shape, or they may have different shapes. This portion can be configured around the axis. When the insert is positioned within the nozzle, the insert is preferably substantially coaxial with the orifice of the nozzle. The portion can be regularly or irregularly spaced about the axis. The insert may be partially located within the bore of the nozzle, such as to cause a portion of the insert to project forwardly from the forward end of the nozzle to direct a portion or all of the mixed air flow in a particular direction. Alternatively, the insert can be located substantially entirely within the bore of the nozzle. The orifice of the nozzle preferably tapers outwardly toward the front end of the orifice, so that the insert is preferably inserted into the bore through the front end of the nozzle. The insert can be in the shape of a ring. The insert can include an edge over the leading edge of the nozzle to retain the insert within the bore of the nozzle. The at least one outlet of the nozzle may be located adjacent the rear of the nozzle and configured to eject a main air flow through the aperture of the nozzle. As previously mentioned, the nozzle preferably includes a surface defining a bore of the nozzle, and the at least one outlet is preferably configured to direct a flow of primary air over the surface of the nozzle. Preferably, the at least one outlet is configured to direct a surface over which the primary air flow passes over comprises a Coanda surface. Cohen 6 M424403 The surface is of a known type, and the fluid flow exiting the output orifice close to the surface passes over the surface to exhibit the Coanda effect. The fluid tends to flow against the surface, almost "close" or "close" to the surface. The Coanda effect is a proven and widely documented means of fluid carry-over by which the primary air stream is directed over the surface of the Coanda. A description of the surface features of Coanda and the effects of fluid flow across the Coanda surface can be found in the article by Scientific American, Volume 214, June 1966, pages 84-92 of Reba. With the use of the Coanda surface, the amount of air introduced from the outside of the fan through the holes is increased by the air ejected through the nozzles. In a preferred embodiment, the air flow is formed by the nozzles of the fan. In the following, this air flow is referred to as the main air flow. The primary air stream is ejected from the at least one outlet of the nozzle and preferably passes over the Coanda surface. The main air stream carries the air around the nozzles and acts as an air amplifier to provide the main air stream with the incoming air stream to the user. The incoming air is referred to herein as the secondary air flow. The secondary air flow is drawn in from the interior space, area or external environment around the nozzle mouth, and alternatively, is drawn from other areas surrounding the fan and predominantly flows through the aperture defined by the nozzle. The primary air stream directed over the surface of the Coanda and the incoming auxiliary air stream together correspond to a mixed or total air stream that is ejected or blown forward from the front end of the orifice of the nozzle. The Coanda surface can include a diffuser portion downstream of the at least one outlet. The diffuser portion preferably extends about the axis and preferably tapers towards or away from the axis. 7 M424403 The insert preferably covers at least one minute of the Coanda surface of the nozzle. Thus, it can be provided in the form of a mask that can be inserted into the orifice of the nozzle to cover the diffusion of the Coanda surface. At least one / knife. When the insert comprises a plurality of interconnected eight B's, each of the portions may cover the Coanda surface disperser portion: partial. As an alternative to providing an insert member using a plurality of interconnected portions, the insert may include a perforated surface, and when the insert member is in the nozzle, the auxiliary air flow from the outside of the fan is caused by the main air flow ejected from the nozzle. Pass through the secret sucker. The remainder may cover the annular portion of the Coanda surface, preferably covering at least a portion of the diffuser portion of the Coanda surface, and more preferably covering substantially the entire diffuser portion of the Coanda surface. When the insert is in the nozzle, the aperture of the insert is preferably substantially coaxial with the orifice of the nozzle. The at least one outlet of the nozzle is preferably configured to direct the flow of primary air through the aperture of the insert. The surface of the insert preferably extends about the axis and at least a portion of the surface is preferably inclined toward the axis. The slope of the surface of the insert relative to the axis is preferably different from the slope of the diffuser portion of the Coanda surface. In this case, the position of the insert in the hole of the nozzle 邛 changes the flow rate (fl0Wrate) and the catch of the mixed air flow. For example, where the angle of inclination of the surface of the insert relative to the axis is less than the angle of inclination of the diffuser portion of the Coanda surface relative to the axis, the flow of the mixed air flow will decrease as the insert is positioned within the nozzle, However, the flow of mixed air streams will increase. M424403 makes the surface of all inserts relatively slanted, so the surface can be inside the 1st round. Alternatively, the tilt angle can be relative to: the axis Wei. When the oblique angle is normalized with respect to the material line, when the t insertion member is located in the hole of the nozzle, the air spurt A by the fan and the empty turbulence of the two houses may have a non-cylindrical shape or
非截頭圓錐形輪廓。該角度可沿表面變動，即，相對於 轴線’在至少-個最小值和至少—個最大值之間變動。 較佳地，角度/口表面在多個最大值和多個最小值之間變 動。在-個較佳實施例中，角度沿表面在六個最大值和 六個最小值t間變動。較佳最大值和最小值繞軸線規則 地間隔開。最小值的範圍可以從-15。至15。，而最大值 的範圍可以< 20至35。在一個較佳實施例中，最大值 至少為最小值的兩倍。傾斜角可相對於軸線連續或不連 續地變動。Non-fragmented conical profile. The angle may vary along the surface, i.e., between at least a minimum and at least a maximum relative to the axis'. Preferably, the angle/port surface varies between a plurality of maximum values and a plurality of minimum values. In a preferred embodiment, the angle varies along the surface between six maximum values and six minimum values t. Preferably, the maximum and minimum values are regularly spaced about the axis. The minimum range can range from -15. To 15. , and the maximum range can be < 20 to 35. In a preferred embodiment, the maximum value is at least twice the minimum value. The tilt angle may vary continuously or non-continuously with respect to the axis.
風扇可包括一組插入件，該插入件可互換地位於喷 嘴的孔内’且因此本創作在第二方面中提供了一種風 扇’其包括噴嘴以及用於產生流經該嘴嘴的主空氣流的 裝置，該喷嘴包括用於喷出主空氣流的至少一個出口， 喷嘴限定出孔’通過該孔從該至少一個出口嘴出的主空 氣流將來自風扇外部的輔助空氣流吸入，且該輔助空氣 流和主空氣流結合形成混合空氣流；其特徵在於該風扇 包括多個插入件，它們可互換地插入喷嘴的孔中，以調 節該混合空氣的至少一個參數，每一個插入件都具有各 自不同的輪廓。例如，如上所述，一個插入件可包括多 9 M424403 個互相連接的部分’而另一插入件可包括孔，通過該孔 噴嘴嘴部喷出的主空氣流可將輔助空氣流吸入。 該至少一個出口較佳地圍繞喷嘴的孔延伸。噴嘴可 包括圍繞孔連續的單個出口，該出口可大致為圓形。較 佳地，在出口（一個或多個）處噴嘴的相對表面之間的 間距較佳地在〇· 5 nun至5 mm的範圍内。該一個，或每 —個出口較佳地為槽的形式。 噴嘴被較佳地安裝在收納有用於產生空氣流的裝置 的基部上。在本較佳的風扇中，該產生穿過喷嘴的空氣 <的较置包括由馬達驅動的葉輪。 插入件可獨立於風扇設置，因此本創作在第三方面 、f —種用於風扇的附件，該附件包括至少一個用於 出主空氣流的出口以及孔，通過該孔來自風扇外部的 助空氣流被從所述至少一個出口噴出的主空氣流吸 ，且和主空氣流結合以產生混合空氣流，可將該附件 於噴嘴上，較佳地位於喷嘴的該孔中。 數如上所述’附件可改變混合空氣流的至少一個參 處。但是，附件可為使用者提供可供選择的或附加的好 由。例如，附件可具有不同於風扇喷嘴的顏色，和/或可 成不同於風扇噴嘴的材料製成。附件町由螢光材料製 光或可包括一個或多個發光二極體（0Ds)或其他發 個，，。附件可被配置為支撐圖片、照片戒其他物件（一 件if個）。例如，該附件可包括用於保掎一個或多個物 叹體，該物件諸如文具、錢幣、鑰麥、遙控器等。 M424403 可將附件夾緊於喷嘴的前端。附件可包括溫度計、氣壓 計、攝像頭、顯示幕、時鐘、無線電接收裝置或其他電 子或機械設備。 在第四方面，本創作提供了一種風扇裝置以及用於 產生穿過所述噴嘴的空氣流的裝置，噴嘴包括内部通 道、用於從該内部通道接收空氣流的至少一個出口、以 及科恩達表面，該科恩達表面位於該至少一個出口附 近，該至少一個出口被配置為引導主空氣流掠過該科恩 達表面，其特徵在於該風扇包括可移除的、用以覆蓋科 恩達表面的至少一部分的罩。 以上結合本創作的第一方面所描述的特徵可被等同 地應用于本創作的第二至第四方面，反之亦然。 【實施方式】 圖1為第一風扇10的外部視圖。風扇10包括體部 12以及喷嘴16，體部12包括空氣進口 14,其中主空氣 流穿過空氣進口進入風扇10，而喷嘴10為安裝在體部 12上的環狀外殼的形式，且其包括用於從風扇10喷射 出主空氣流的嘴部18。 體部12包括基本圓柱形的主體部部分20，該部分 被安裝在基本圓柱形的下體部部分22上。該主體部部分 20以及下體部部分22較佳具有基本相同的外部直徑， 以使得上體部部分20的外表面基本和下體部部分22的 外表面基本上為平齊。在該實施例中，體部12的高度的 M424403 範圍為從100至300 mm，且其直徑的範圍為從100至200 mm ° 主體部部分20包括空氣進口 14 ’主空氣流穿過該 空氣進口進入風扇10。在該實施例中，空氣進口 14包 括形成在主體部部分20中的開孔陣列。可替換地，空氣 進口 14可包括一個或多個格柵或網格，它們被安裝在形 成於主體部部分20内的視窗部内。主體部部分20在其 上端敞開（如圖所示），以提供空氣出口 23，主空氣流 穿過該空氣出口排出體部12。 該主體部部分20可相對於下體部部分22傾斜，以 調整從風扇10喷射出的主空氣流的方向。例如’下體部 部分22的上表面以及主體部部分20的下表面可設置有 互相連接的結構特徵部，這些特徵部允許主體部部分20 相對於下體部部分22運動，且阻止該主體部部分20被 從下體部部分22升起。例如，下體部部分22以及主體 部部分20可包括互鎖的L形構件。 下體部部分22包括風扇10的使用者介面。該使用 者介面包括讓使用者控制風扇10的各種功能的撥盤 28,多個使用者可操作按鈕24、26,以及連接至按鈕24、 26以及撥盤28的使用者介面控制電路30。下體部部分 22被安裝在用於和風扇10所處的表面相接合的基部32 上。 圖2示出了通過風扇10的體部的截面圖。下體部部 分22容納有總體以附圖標記34示出的主控制電路，其 =二二應按心、2“ 合適的信號傳輪至主控制電路3 4 配置為將 種運行。 控制風扇10的各 下體邛崢分22也容納有一機構，其 總體地示出’用於使下體 ^ ^ 丨刀Ζ相對於基部32擺動。 擺動機構36的運行被主控制電路 用去强你；丨 ^ 呢'丁按4δ26的使 =L 部分22相對於基部32的每- :人擺動週期的範圍較佳地在6{Γ和⑽ 施例中為約80。。在該實施，# 曰 在〇實 實施每分鐘約3至5次的：二= 被配置為 電 電源電纜38延伸穿過形成於基部32内的孔 ㈣38被連接聽座（未示出），以和主電源相連 ，體部部分2G容納有葉輪4G，以吸引主空氣流經 k玉氣進口 14並進入體部12内。較佳地，葉輪4〇為混 合氣流葉輪的形式。葉輪4Q被連接至旋轉軸42，該旋 轉轴從馬達44向外延伸。在該實施例中，馬達44為DC 無刷馬，，其速度可被主控制電路34回應於撥盤28的 使用者操作進行變動。馬達44的最高速度較佳地在 5000 至10000 HDin的範圍内。馬達44被收納在馬達桶中，該 馬達桶包括連接至下部部分48的上部部分46。馬達桶 的上部部分46包括擴散|| 5Q，擴散器為具有螺旋葉片 的靜態盤形式。 M424403 馬達桶位於大體為截頭圓錐體的葉輪殼體52内’且 被安裝在該葉輪殼體52上。葉輪殼體52繼而被安裝在 多個（在此示例中為三個）角度間隔開的支撐部54上， 該支撐部位於基部12的主體部部分20内’且被連接至 該主體部部分。葉輪40以及葉輪殼體52被成形為使得 葉輪40和葉輪殼體52的内表面緊密靠近，但不接觸。 基本環形的入口構件56被連接至葉輪殼體52的底部’ 以將主空氣流引入葉輪殼體52中。電纜58從主控制電 路34穿過形成於主體部部分20以及體部12的下體部部 分22内，和位於葉輪殼體52和馬達桶内的孔口 ’到達 馬達44。 較佳地，體部12包括吸音泡沬材料，以降低由體部 12發出的噪音。在該實施例中，體部12的主體部部分 20包括位於空氣進口 14之下的第一泡沫材料構件60， 以及位於馬達桶内的第二環狀泡沫材料構件62。 可撓式密封構件64被安裝在葉輪殼體52上。可撓 式密封構件阻止空氣從葉輪殼體52的外表面周圍進入 入口構件56。密封構件64較佳地包括環狀唇形密封件， 該唇形密封件較佳地由橡膠製成。密封構件64還包括導 向部分，其為套管形式，以將電纜58引導至馬達44。 回到圖1，喷嘴16為環狀的形狀，其繞中心軸線X 延伸，以限定孔70。嘴部18位於喷嘴16後部附近，且 被配置朝向風扇10的前方喷射主空氣流，所述主空氣流 穿過孔70。嘴部18環繞孔70。在該示例中，喷嘴16限 M424403 定了沿中心軸線X延伸、大體為圓形的孔70。噴嘴16 外表面的最内側，包括科恩達表面72，其毗鄰嘴部18， 且嘴部18被配置為引導自風扇10噴出的空氣掠過該表 面。科恩達表面72包括擴散器部分74，其從中心轴線X 向外漸縮。在該示例中，擴散器部分74大體為截頭圓錐 形狀、繞軸線X延伸的表面，且其被相對於軸線X以範 圍在5°至35°内的角度傾斜，該角度在該示例中為約28 〇 〇 喷嘴16包括環狀前殼體部分76，其被連接至環狀 後殼體部分78，且繞該環狀後殼體部分延伸。喷嘴16 的環狀部分76、78繞中心軸線X延伸。這些部分的每一 部分都可由多個被連接在一起的部分構成，但在該實施 例中，每一前殼體部分76和後殼體部分78都由相應的、 單個模組部分構成。後殼體部分78包括基部80，其被 連接至體部12的主體部部分20的開口上端，且包括用 於接收來自體部12的主空氣流的開口下端。 也參照圖2，在裝配中，後殼體部分78的前端82 被插入位於前殼體部分76内的槽84内。每一前端82和 槽84大體為圓柱形。殼體部分76、78可被使用施加於 槽84内的轴合劑連接在一起 前殼體部分76限定了喷嘴16的科恩達表面72。前 殼體部分76和後殼體部分78 —起限定了環狀内部通道 88，以將主空氣流傳遞至嘴部18。内部通道88繞軸線X 延伸，其被前殼體部分76的内表面90以及後殼體部分 15 M424403 78的内表面92界定邊界。前殼體部分76的基部80被 定形為將主空氣流傳遞進入喷嘴16的内部通道88内。 嘴部18被後殼體部分78的内表面92以及前殼體部 分76的外表面94的重合或相向的部分分別限定。嘴部 18較佳包括為環狀槽形式的空氣出口。該槽較佳大體為 環形，且較佳地具有相對不變的寬度，該寬度在0.5至 5 mm的範圍内。在該示例中，空氣出口具有約1 mm的 寬度。間隔物可圍繞嘴部18間隔開，以將前殼體部分 76和後殼體部分78的重疊部分分離開’以控制嘴部18 的空氣出口寬度。這些間隔物可以與前殼體部分76或者 與後殼體部分78成一體。嘴部18被成形為引導主空氣 流掠過前殼體部分76的外表面94。 為了操作風扇10,使用者按壓使用者介面的按鈕 24。使用者介面控制電路30將該動作傳輸給主控制電路 34，響應於該動作，主控制電路34促動馬達44，以旋 轉葉輪40。葉輪40的旋轉導致主空氣流經由空氣進口 14而被吸入體部12。使用者可通過操控使用者介面上的 撥盤28來控制烏達44的速度，並由此控制空氣被經由 空氣進口 14吸入體部12内的速率。取決於馬達44的速 度，由葉輪40產生的主空氣流可以在每秒10升至每秒 30升之間。主空氣流順序經過葉輪殼體52，以及位於主 體部部分20的上開口端的空氣出口 23，以進入喷嘴16 的内部通道88。在體部12的空氣出口 23處的主空氣流 的壓力可為至少150 Pa，且較佳地在從250 Pa至1.5 kPa 的範固内。 在喷嘴16的内部通道88中，主空氣流被分成兩股 空氣流，它們以相反的方向環繞喷嘴16的孔70流動。 當空氣流流經内部通道88時，空氣被通過嘴部18喷出。 從嘴部18喷出的主空氣流被引導掠過喷嘴16的科恩達 表面72，這導致通過帶入來自外部的空氣、特別是來自 嘴部18周圍以及來自喷嘴16的後部周圍的區域的空氣 而產生的輔助空氣流。該輔助空氣流流經喷嘴16的孔 7Π ’在該孔處輔助空氣流和主空氣流結合以產生從喷嘴 μ朝前喷出的混合或總空氣流、或空氣流。 上同時參照圖3至8,風扇1〇包括罩1()0的第一實例， 該罩可移除地位於噴嘴的科恩達表面72上方，以改變混 合空氣流的至少一個參數。I 100為插入件的形式，其 可，插人噴嘴16的孔7Q内’以覆蓋喷嘴16的科恩達表 5 7 Π: 分。由於科恩達表面72的擴散器部分 ^丨孔7〇朝向孔7〇的開口前端96向外漸縮， 罩100通過孔70的開口前端96被插入喷嘴16的孔70。 罩1(^包括料環狀邊緣⑽，外部環 70的前端96上方，且當罩刚位於喷嘴 = 繞喷嘴16的前殼體部分％的外表面。在該示H 100通過噴嘴16和罩⑽之_忖配合被保持在喷嘴 可設有用於可移除地將罩100固定至 喷嘴16的裝置。例如，可動的卡扣可位於 殼體部分76的外表面上，以將罩議保持在嘴嘴16上月’。 M424403 作為另一個示例，罩10Q可被磁性地吸至喷嘴16。作為 又一示例，罩100可被摩擦地聯接至喷嘴16。 為了移除罩100，使用者可簡單地從噴嘴16處拉動 罩 100。 罩1〇〇大體為環形。罩1〇〇包括大體圓形的前端 104、大體圓形的後端ι〇6、環形外表面1〇8以及環形内 表面11〇，其每一個都在罩100的前端1〇4和後端1〇6 之間延伸。罩1〇〇的外表面1〇8和内表面11〇每一個都 繞Y軸線延伸，參見圖2，在罩1〇〇被插入喷嘴16的孔 70中時，該Y抽線和嘴嘴16的χ軸線大致共線。罩1〇〇 的外表面108和科恩達表面的擴散器部分74具有大體相 同的尺寸和形狀。具體地說，外表面⑽相對於γ袖線 的傾斜角和科恩達表面72的擴脑部分74相對於 線的傾斜角大致相同。因此，且如圖8所示， 被插入喷嘴16的孔7G中時，科恩達表面72的^ 分74完全被罩100覆蓋，但喷嘴16的嘴部18保== 暴露。 、 因此，當罩100被播入孔70中時，從 的主空氣流被料㈣科恩達表面72的後料=喷出 如圖8所示，且掠過罩刚的内表面U0。如上^ 罩100的内表面110為環形形狀，且因此限定了在=00 的前端104和後端106之間穿鮮1〇〇的罩: 風扇Π)料關Μ氣流觀嘴部18喷 % =The fan may include a set of inserts that are interchangeably located within the bore of the nozzle' and thus the second aspect provides a fan that includes a nozzle and for generating a primary air flow through the nozzle Means, the nozzle comprising at least one outlet for ejecting a main air flow, the nozzle defining an aperture through which the main air flow exiting the at least one outlet nozzle draws an auxiliary air flow from outside the fan, and the auxiliary The air stream and the main air stream combine to form a mixed air stream; characterized in that the fan includes a plurality of inserts that are interchangeably inserted into the apertures of the nozzle to adjust at least one parameter of the mixed air, each insert having its own Different contours. For example, as described above, one insert may include more than 9 M 424 403 interconnected portions ' and the other insert may include a hole through which the main air flow ejected from the nozzle nozzle may draw the auxiliary air flow. The at least one outlet preferably extends around the aperture of the nozzle. The nozzle can include a single outlet that is continuous around the aperture, which can be generally circular. Preferably, the spacing between the opposing surfaces of the nozzles at the outlet(s) is preferably in the range of 〇 5 nun to 5 mm. The one, or each of the outlets, is preferably in the form of a trough. The nozzle is preferably mounted on a base that houses a means for generating a flow of air. In the preferred fan of the present invention, the arranging of the air that passes through the nozzle includes an impeller driven by a motor. The insert can be arranged independently of the fan, so in the third aspect, the invention is an accessory for a fan, the accessory comprising at least one outlet for the exiting main air flow and a hole through which the air is supplied from outside the fan The stream is drawn by the primary air ejected from the at least one outlet and combined with the main air stream to produce a mixed air stream which may be attached to the nozzle, preferably in the aperture of the nozzle. The number of attachments as described above can change at least one reference of the mixed air stream. However, the accessory provides the user with an alternative or additional benefit. For example, the attachment may have a different color than the fan nozzle and/or may be made of a different material than the fan nozzle. The accessory town is made of fluorescent material or may include one or more light emitting diodes (ODs) or other hairs. Attachments can be configured to support pictures, photos, or other objects (one if). For example, the accessory may include one or more object slings, such as stationery, coins, key wheat, remote controls, and the like. The M424403 clamps the attachment to the front of the nozzle. Accessories may include thermometers, air pressure gauges, cameras, display screens, clocks, radio receivers, or other electronic or mechanical equipment. In a fourth aspect, the present disclosure provides a fan apparatus and means for generating a flow of air through the nozzle, the nozzle including an internal passage, at least one outlet for receiving air flow from the internal passage, and a Coanda surface a surface of the Coanda located adjacent the at least one outlet, the at least one outlet configured to direct a flow of primary air across the surface of the Coanda, characterized in that the fan includes at least a portion that is removable to cover a surface of the Coanda Cover. The features described above in connection with the first aspect of the present work can be equally applied to the second to fourth aspects of the present invention, and vice versa. [Embodiment] FIG. 1 is an external view of a first fan 10. The fan 10 includes a body 12 that includes an air inlet 14 through which an air stream 14 enters the fan 10, and a nozzle 10 that is in the form of an annular housing mounted on the body 12 and that includes A mouth 18 for ejecting a main air flow from the fan 10. The body 12 includes a substantially cylindrical body portion 20 that is mounted on a substantially cylindrical lower body portion 22. The body portion 20 and the lower body portion 22 preferably have substantially the same outer diameter such that the outer surface of the upper body portion 20 is substantially flush with the outer surface of the lower body portion 22. In this embodiment, the height of the body 12 is M424403 ranging from 100 to 300 mm and its diameter ranges from 100 to 200 mm. The body portion 20 includes an air inlet 14 'the main air flow passes through the air inlet Enter the fan 10. In this embodiment, the air inlet 14 includes an array of apertures formed in the body portion 20. Alternatively, the air inlet 14 may include one or more grids or grids that are mounted within the window portion formed in the body portion 20. The body portion 20 is open at its upper end (as shown) to provide an air outlet 23 through which the main air stream exits the body 12. The body portion 20 is tiltable relative to the lower body portion 22 to adjust the direction of the main air flow ejected from the fan 10. For example, the upper surface of the lower body portion 22 and the lower surface of the body portion 20 may be provided with interconnecting structural features that allow the body portion 20 to move relative to the lower body portion 22 and block the body portion 20 It is lifted from the lower body portion 22. For example, the lower body portion 22 and the body portion 20 can include interlocking L-shaped members. The lower body portion 22 includes a user interface of the fan 10. The user interface includes a dial 28 that allows the user to control various functions of the fan 10, a plurality of user operable buttons 24, 26, and a user interface control circuit 30 coupled to the buttons 24, 26 and the dial 28. The lower body portion 22 is mounted on a base 32 for engaging the surface on which the fan 10 is located. FIG. 2 shows a cross-sectional view through the body of the fan 10. The lower body portion 22 houses a main control circuit, generally indicated by reference numeral 34, which = 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2 Each lower body segment 22 also houses a mechanism that generally shows 'used to swing the lower body 丨 Ζ relative to the base 32. The operation of the oscillating mechanism 36 is used by the main control circuit to force you; 丨^ 呢' The range of the per-man oscillation period of the =L portion 22 relative to the base portion 32 is preferably about 80 in the 6{Γ and (10) examples. In this implementation, #曰 is implemented in the compaction. About 3 to 5 minutes: 2 = is configured such that the electrical power cable 38 extends through a hole (four) 38 formed in the base 32 to be connected to a main body (not shown) for connection to the main power source, and the body portion 2G is accommodated The impeller 4G is configured to attract primary air through the k-gas inlet 14 and into the body 12. Preferably, the impeller 4 is in the form of a mixed airflow impeller. The impeller 4Q is coupled to a rotating shaft 42 that is coupled from the motor 44. Extending outwardly. In this embodiment, the motor 44 is a DC brushless horse, and its speed can be The control circuit 34 varies in response to user operation of the dial 28. The maximum speed of the motor 44 is preferably in the range of 5,000 to 10,000 HDin. The motor 44 is housed in a motor bucket that includes a lower portion 48. The upper portion 46. The upper portion 46 of the motor barrel includes a diffusion || 5Q, and the diffuser is in the form of a static disk having a helical blade. The M424403 motor barrel is located within the generally frustoconical impeller housing 52 and is mounted therein The impeller housing 52. The impeller housing 52 is in turn mounted on a plurality of (three in this example) angularly spaced apart support portions 54 that are located within the body portion 20 of the base 12 and are connected To the body portion, the impeller 40 and the impeller casing 52 are shaped such that the inner surfaces of the impeller 40 and the impeller casing 52 are in close proximity but not in contact. The substantially annular inlet member 56 is coupled to the bottom of the impeller casing 52' The main air flow is introduced into the impeller housing 52. The cable 58 passes from the main control circuit 34 through the body portion 20 and the lower body portion 22 of the body 12, and is located in the impeller housing 52 and the motor bucket. The aperture 'reaches the motor 44. Preferably, the body 12 includes a sound absorbing bubble material to reduce the noise emitted by the body 12. In this embodiment, the body portion 20 of the body 12 includes an air inlet 14 a first foam member 60, and a second annular foam member 62 located within the motor barrel. The flexible sealing member 64 is mounted on the impeller housing 52. The flexible sealing member blocks air from the impeller housing The outer surface of the body 52 enters the inlet member 56. The sealing member 64 preferably includes an annular lip seal, preferably made of rubber. The sealing member 64 also includes a guide portion in the form of a sleeve to guide the cable 58 to the motor 44. Returning to Figure 1, the nozzle 16 is annular in shape that extends about a central axis X to define an aperture 70. The mouth 18 is located adjacent the rear of the nozzle 16 and is configured to inject a main air flow toward the front of the fan 10, the main air flow passing through the aperture 70. The mouth 18 surrounds the aperture 70. In this example, nozzle 16 is limited to M424403 defining a generally circular aperture 70 extending along central axis X. The innermost side of the outer surface of the nozzle 16 includes a Coanda surface 72 adjacent the mouth 18 and the mouth 18 is configured to direct air ejected from the fan 10 across the surface. The Coanda surface 72 includes a diffuser portion 74 that tapers outwardly from the central axis X. In this example, the diffuser portion 74 is generally frustoconical in shape, a surface extending about the axis X, and it is inclined at an angle ranging from 5° to 35° with respect to the axis X, which in this example is The approximately 28 〇〇 nozzle 16 includes an annular front housing portion 76 that is coupled to the annular rear housing portion 78 and extends around the annular rear housing portion. The annular portions 76, 78 of the nozzle 16 extend about a central axis X. Each of these portions may be constructed of a plurality of joined portions, but in this embodiment, each of the front and rear housing portions 76, 78 is constructed of a respective, modular portion. The rear housing portion 78 includes a base 80 that is coupled to the open upper end of the body portion 20 of the body 12 and includes an open lower end for receiving primary air flow from the body 12. Referring also to Figure 2, in assembly, the forward end 82 of the rear housing portion 78 is inserted into a slot 84 located within the front housing portion 76. Each of the front ends 82 and slots 84 are generally cylindrical. The housing portions 76, 78 can be joined together using a molding agent applied to the slots 84. The front housing portion 76 defines the Coanda surface 72 of the nozzle 16. The front housing portion 76 and the rear housing portion 78 together define an annular internal passage 88 to transfer the primary air flow to the mouth 18. The inner passage 88 extends about the axis X, which is bounded by the inner surface 90 of the front housing portion 76 and the inner surface 92 of the rear housing portion 15 M424403 78. The base 80 of the front housing portion 76 is shaped to transfer the primary air flow into the internal passage 88 of the nozzle 16. The mouth 18 is defined by the inner surface 92 of the rear housing portion 78 and the overlapping or opposing portions of the outer surface 94 of the front housing portion 76, respectively. The mouth portion 18 preferably includes an air outlet in the form of an annular groove. The groove is preferably generally annular and preferably has a relatively constant width which is in the range of 0.5 to 5 mm. In this example, the air outlet has a width of about 1 mm. Spacers may be spaced around the mouth 18 to separate the overlapping portions of the front and rear housing portions 76, 78 to control the air outlet width of the mouth 18. These spacers may be integral with the front housing portion 76 or the rear housing portion 78. The mouth 18 is shaped to direct the primary air flow across the outer surface 94 of the front housing portion 76. To operate the fan 10, the user presses the button 24 of the user interface. The user interface control circuit 30 transmits the action to the main control circuit 34. In response to this action, the main control circuit 34 actuates the motor 44 to rotate the impeller 40. Rotation of the impeller 40 causes the main air flow to be drawn into the body 12 via the air inlet 14. The user can control the speed of the Uda 44 by manipulating the dial 28 on the user interface and thereby control the rate at which air is drawn into the body 12 via the air inlet 14. Depending on the speed of the motor 44, the primary air flow generated by the impeller 40 can be between 10 liters per second and 30 liters per second. The main air flow sequentially passes through the impeller housing 52 and the air outlet 23 at the upper open end of the main body portion 20 to enter the internal passage 88 of the nozzle 16. The pressure of the primary air stream at the air outlet 23 of the body 12 can be at least 150 Pa, and preferably within a range of from 250 Pa to 1.5 kPa. In the internal passage 88 of the nozzle 16, the main air stream is split into two streams of air which flow in opposite directions around the bore 70 of the nozzle 16. As the air flow passes through the internal passage 88, air is ejected through the mouth 18. The main air stream ejected from the mouth 18 is directed over the Coanda surface 72 of the nozzle 16, which results in air passing through from the outside, particularly from around the mouth 18 and from the area around the rear of the nozzle 16. The resulting auxiliary air flow. The auxiliary air stream flows through the orifice 7' of the nozzle 16 where the auxiliary air stream and the main air stream combine to produce a mixed or total air stream, or air stream, ejected from the nozzle μ forward. Referring concurrently to Figures 3 through 8, the fan 1 includes a first example of a cover 1 () 0 removably positioned over the Coanda surface 72 of the nozzle to vary at least one parameter of the mixed air flow. I 100 is in the form of an insert which can be inserted into the hole 7Q of the nozzle 16 to cover the Coanda table of the nozzle 16 5: Since the diffuser portion of the Coanda surface 72, the bore 7 is tapered outwardly toward the open front end 96 of the bore 7, the cover 100 is inserted through the open front end 96 of the bore 70 into the bore 70 of the nozzle 16. The cover 1 (comprising a material annular edge (10), above the front end 96 of the outer ring 70, and when the cover is just located at the outer surface of the nozzle = around the front housing portion of the nozzle 16. The H 100 passes through the nozzle 16 and the cover (10) The yoke fit is retained at the nozzle and may be provided with means for removably securing the hood 100 to the nozzle 16. For example, a movable snap may be located on the outer surface of the housing portion 76 to retain the hood in the mouth Mouth 16 last month'. M424403 As another example, the cover 10Q can be magnetically attracted to the nozzle 16. As yet another example, the cover 100 can be frictionally coupled to the nozzle 16. To remove the cover 100, the user can simply The cover 100 is pulled from the nozzle 16. The cover 1 is generally annular. The cover 1 includes a generally circular front end 104, a generally circular rear end 〇6, an annular outer surface 1〇8, and an annular inner surface 11〇 Each of them extends between the front end 1〇4 and the rear end 1〇6 of the cover 100. The outer surface 1〇8 and the inner surface 11〇 of the cover 1〇〇 each extend around the Y axis, see Fig. 2, When the cover 1 is inserted into the hole 70 of the nozzle 16, the Y-drawing line and the axis of the nozzle 16 are substantially collinear. The outer surface 108 of the crucible and the diffuser portion 74 of the Coanda surface have substantially the same size and shape. Specifically, the angle of inclination of the outer surface (10) relative to the gamma sleeve line and the brain enlarging portion 74 of the Coanda surface 72 relative to the line The angle of inclination is substantially the same. Therefore, as shown in Fig. 8, when inserted into the hole 7G of the nozzle 16, the portion 74 of the Coanda surface 72 is completely covered by the cover 100, but the mouth portion 18 of the nozzle 16 is protected == exposed. Therefore, when the cover 100 is inserted into the hole 70, the main air flow from the material (4) of the Coanda surface 72 is discharged as shown in Fig. 8, and is swept past the inner surface U0 of the cover. The inner surface 110 of the cover 100 is annular in shape and thus defines a cover that is slid between the front end 104 and the rear end 106 of 00: fan Π) Μ Μ Μ Μ Μ 18 18 18
吸引穿過該孔。 」王工軋"丨L M424403Attracts through the hole.王工轧"丨L M424403
於將由風扇10產 擴散器表面。内表 +恩達表面72的n 且因此將罩1 〇 〇插 町月，且因此將罩100插 入噴嘴16的孔70的結果是混合空氣流的多個參數被改 變。在此示例中’内表面11M目對於¥軸線的傾斜角小 於科恩達表面72的擴散器部分74相對於X軸線的傾斜 角，使得罩100的徑向厚度朝向罩100的後端106減小。 在該示例中，内表面110相對於γ軸線的傾斜角為約1〇 。，且因此將罩100插入喷嘴16的孔70中用於限制由風 扇10產生的混合空氣流的輪廓。這可提供朝向位於風扇 10之前的使用者彙聚的混合空氣流《由罩1〇〇提供的較 淺的擴散器部分還用於增加混合空氣流的速度，並減少 混合空氣流的流量。 圖9和10示出了罩120的第二示例，其可以可移除 地定位於噴嘴的科恩達表面72上方，以改變混合空氣流 的至少一個參數。和罩1〇〇類似，罩120也是插入件的 形式’其可被插入喷嘴16的孔70中，以覆蓋喷嘴16的 科恩達表面72的至少一部分。罩12〇也包括外部環狀邊 緣122 ’其可位於孔70的前端96的上方，且當罩10〇 位於喷嘴16上時，其圍繞噴嘴16的前殼體部分76的外 表面。但是，該罩120不同於罩100之處在於罩12〇的 前端124、後端126、外表面128以及内表面130不是連 續的。替代地，罩120包括多個被環狀邊緣122連接的 M424403 部分132，這些部分132位於罩120的Y軸線周圍且圍 繞罩120的Υ軸線大體規則地間隔開。在該示例中，罩 120包括六個繞罩120規則地間隔開的部分132。每一個 部分132都大體為楔形。每一外表面128都以和科恩達 表面72的擴散器部分74與X軸線之間傾斜相同的角度 朝向Υ軸線漸縮，以使得當罩120位於喷嘴16上時’罩 120的部分132部分地覆蓋科恩達表面72的擴散器部分 74。和罩100的内表面110類似，内表面130相對於Υ 軸線的傾斜角小於科恩達表面72的擴散器部分74相對 於X軸線的傾斜角，因此部分132的徑向厚度朝向部分 132的後端126減小。在該示例中，内表面130相對於Υ 軸線的傾斜角也為約10°。 因此，如圖9所示，通過孔70的開口前端96將罩 120插入噴嘴16中時，喷嘴16的孔134被科恩達表面 72的擴散器部分74的未覆蓋部分以及罩120的内表面 130兩者限定。喷嘴16的孔134因此具有臺階狀輪廓， 其中孔134相對於X軸線的傾斜角在多個最大值（在此 示例中每一個都為約28 °)和多個最小值（在此示例中 每一個都為約10°)之間變動。喷嘴16的孔134的這種 輪廓變化使得混合空氣流具有非圓形或非截頭圓錐形輪 廓，所述輪廓由於罩120的不連續性而僅朝向使用者部 分地彙聚。 在該第二示例中，將罩120插入喷嘴16導致喷嘴 16的孔134具有臺階狀輪廓。圖11和12示出了罩140 20 M424403 的第三示例。罩140和罩100類似。罩140也為插入件 的形式，其可被插入喷嘴16的孔70，以覆蓋喷嘴16的 科恩達表面72的至少一部分。罩140也包括外部環狀邊 緣142，該環狀邊緣位於孔70的前端96上方，且在罩 100位於噴嘴16上時，該環狀邊緣圍繞喷嘴16的前部 殼體部分76的外表面。罩140也具有連續前端144、圓 形後端146、環狀外表面148、以及限定孔152的内表面 150。罩140的外表面148和罩100的外表面108相同。 但是，罩140的内表面150不同於罩100的内表面110， 這是由於内表面150相對於罩140的Y軸線的傾斜角圍 繞Y軸線變化。該傾斜角在圍繞Y軸線規則地間隔開的 多個最大值和多個最小值之間變動。内表面15 0被定形 為使得圍繞Y軸線的傾斜角在最大值和最小值之間逐漸 地變化。 因此，當罩140被插入喷嘴16的孔70中時，罩140 的内表面150也提供用於引導由風扇10產生的混合空氣 流的擴散器表面，以獲得非圓狀或非截頭圓錐體形的輪 廓。也和罩120類似，罩140可相對於喷嘴16旋轉，以 改變由風扇產生的混合空氣流的取向。 【圖式簡單說明】 圖1是從上方看去的風扇的立體圖； 圖2是風扇的側向剖面圖； 圖3是從上方看去的用於風扇的插入件立體圖； 21 M424403 圖4是從上方看去的用於風扇的立體圖，其中插入 件位於噴嘴的孔中； 圖5是圖4所示風扇的側視圖； 圖6是圖4所示風扇的俯視圖； 圖7是圖4所示風扇的正視圖； 圖8是圖7中沿線A-A剖開的側向剖面圖； 圖9是從上方看去的風扇的第二插入件的立體圖； 圖10是從上方看去的風扇的立體圖，其中第二插入 件位於喷嘴的孔中； 圖11是從上去看去的風扇的第三插入件的立體 圖，和 圖12是從上方看去的風扇的立體圖，其中第三插入 件位於喷嘴的孔中。 【主要元件符號說明】 10風扇 12體部 14空氣進口 16喷嘴 18嘴部 20主體部部分 22下體部部分 23空氣出口 24按紐 22 M424403 26按鈕 28撥盤 30使用者介面控制電路 32基部 34主控制電路 36擺動機構 38電纜 40葉輪 42旋轉軸 44馬達 46上部部分 48下部部分 50擴散器 52葉輪殼體 54支撐部 56入口構件 58電纜 60第一泡沫材料構件 62第二環狀泡沫材料構件 64密封構件 70孔 7 2科恩達表面 7 3後部部分 74擴散器部分 23 M424403 76前殼體部分 78後殼體部分 80基部 82前端 84槽 88内部通道 90内表面 92内表面 94外表面 96前端 100罩 102外部環狀邊緣 104前端 106後端 108外表面 110内表面 112孔 120罩 122環狀邊緣 124前端 126後端 128外表面 130内表面 132部分 24 M424403 134孔 140罩 142外部環狀邊緣 144前端 146後端 148外表面 150内表面 152孔The diffuser surface will be produced by the fan 10. The inner table + n of the Enda surface 72 and thus the cover 1 〇 is inserted into the hole, and thus the cover 100 is inserted into the hole 70 of the nozzle 16 as a result of which the plurality of parameters of the mixed air flow are changed. In this example, the angle of inclination of the inner surface 11M to the axis of the ¥ is less than the angle of inclination of the diffuser portion 74 of the Coanda surface 72 with respect to the X axis such that the radial thickness of the cover 100 decreases toward the rear end 106 of the cover 100. In this example, the angle of inclination of the inner surface 110 relative to the gamma axis is about 1 。. And thus the cover 100 is inserted into the aperture 70 of the nozzle 16 for limiting the profile of the mixed air flow produced by the fan 10. This provides a mixed air flow that converges toward the user located in front of the fan 10. The shallower diffuser portion provided by the cover 1 is also used to increase the velocity of the mixed air flow and reduce the flow of the mixed air flow. 9 and 10 illustrate a second example of a cover 120 that can be removably positioned over the Coanda surface 72 of the nozzle to change at least one parameter of the mixed air flow. Similar to the cover 1 , the cover 120 is also in the form of an insert 'which can be inserted into the aperture 70 of the nozzle 16 to cover at least a portion of the Coanda surface 72 of the nozzle 16. The cover 12A also includes an outer annular rim 122' that can be positioned over the forward end 96 of the aperture 70 and that surrounds the outer surface of the front housing portion 76 of the nozzle 16 when the hood 10 is positioned over the nozzle 16. However, the cover 120 is different from the cover 100 in that the front end 124, the rear end 126, the outer surface 128, and the inner surface 130 of the cover 12 are not continuous. Alternatively, the cover 120 includes a plurality of M424403 portions 132 joined by an annular rim 122 that are located about the Y-axis of the cover 120 and are generally regularly spaced about the Υ axis of the cover 120. In this example, the cover 120 includes six portions 132 that are regularly spaced about the cover 120. Each portion 132 is generally wedge shaped. Each outer surface 128 tapers toward the Υ axis at the same angle as the slope between the diffuser portion 74 and the X axis of the Coanda surface 72 such that the portion 132 of the hood 120 partially when the cover 120 is positioned over the nozzle 16 The diffuser portion 74 of the Coanda surface 72 is covered. Similar to the inner surface 110 of the cover 100, the angle of inclination of the inner surface 130 relative to the Υ axis is less than the angle of inclination of the diffuser portion 74 of the Coanda surface 72 with respect to the X axis, such that the radial thickness of the portion 132 faces the rear end of the portion 132. 126 is reduced. In this example, the angle of inclination of the inner surface 130 relative to the 轴线 axis is also about 10°. Thus, as shown in FIG. 9, when the cover 120 is inserted into the nozzle 16 through the open front end 96 of the aperture 70, the aperture 134 of the nozzle 16 is covered by the uncovered portion of the diffuser portion 74 of the Coanda surface 72 and the inner surface 130 of the cover 120. Both are limited. The aperture 134 of the nozzle 16 thus has a stepped profile, wherein the angle of inclination of the aperture 134 with respect to the X axis is at a plurality of maximum values (each of which is about 28° in this example) and a plurality of minimum values (in this example each One is about 10°). This profile change of the aperture 134 of the nozzle 16 is such that the mixed air flow has a non-circular or non-truncated conical profile that converges only partially toward the user due to the discontinuity of the cover 120. In this second example, the insertion of the cover 120 into the nozzle 16 results in the aperture 134 of the nozzle 16 having a stepped profile. Figures 11 and 12 show a third example of a cover 140 20 M424403. The cover 140 is similar to the cover 100. The cover 140 is also in the form of an insert that can be inserted into the aperture 70 of the nozzle 16 to cover at least a portion of the Coanda surface 72 of the nozzle 16. The cover 140 also includes an outer annular rim 142 that is located above the forward end 96 of the aperture 70 and that surrounds the outer surface of the front housing portion 76 of the nozzle 16 when the cover 100 is positioned over the nozzle 16. The cover 140 also has a continuous front end 144, a rounded rear end 146, an annular outer surface 148, and an inner surface 150 defining an aperture 152. The outer surface 148 of the cover 140 is identical to the outer surface 108 of the cover 100. However, the inner surface 150 of the cover 140 is different from the inner surface 110 of the cover 100 because the angle of inclination of the inner surface 150 relative to the Y axis of the cover 140 varies about the Y axis. The tilt angle varies between a plurality of maximum values and a plurality of minimum values that are regularly spaced about the Y axis. The inner surface 150 is shaped such that the angle of inclination about the Y axis gradually changes between a maximum value and a minimum value. Thus, when the cover 140 is inserted into the aperture 70 of the nozzle 16, the inner surface 150 of the cover 140 also provides a diffuser surface for directing the flow of mixed air produced by the fan 10 to achieve a non-circular or non-truncated cone shape. Outline. Also similar to the cover 120, the cover 140 is rotatable relative to the nozzle 16 to change the orientation of the mixed air flow produced by the fan. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a perspective view of a fan viewed from above; Fig. 2 is a side sectional view of the fan; Fig. 3 is a perspective view of the insert for a fan viewed from above; 21 M424403 Fig. 4 Figure 3 is a side view of the fan of Figure 4; Figure 6 is a plan view of the fan of Figure 4; Figure 7 is a fan of Figure 4; Figure 8 is a side cross-sectional view taken along line AA of Figure 7; Figure 9 is a perspective view of the second insert of the fan as seen from above; Figure 10 is a perspective view of the fan as seen from above, The second insert is located in the bore of the nozzle; Figure 11 is a perspective view of the third insert of the fan as viewed from above, and Figure 12 is a perspective view of the fan as viewed from above, with the third insert located in the bore of the nozzle . [Main component symbol description] 10 fan 12 body 14 air inlet 16 nozzle 18 mouth 20 body portion 22 lower body portion 23 air outlet 24 button 22 M424403 26 button 28 dial 30 user interface control circuit 32 base 34 main Control circuit 36 swing mechanism 38 cable 40 impeller 42 rotary shaft 44 motor 46 upper portion 48 lower portion 50 diffuser 52 impeller housing 54 support portion 56 inlet member 58 cable 60 first foam member 62 second annular foam member 64 Sealing member 70 hole 7 2 Coanda surface 7 3 rear portion 74 diffuser portion 23 M424403 76 front housing portion 78 rear housing portion 80 base portion 82 front end 84 slot 88 internal passage 90 inner surface 92 inner surface 94 outer surface 96 front end 100 Cover 102 outer annular edge 104 front end 106 rear end 108 outer surface 110 inner surface 112 aperture 120 cover 122 annular edge 124 front end 126 rear end 128 outer surface 130 inner surface 132 portion 24 M424403 134 aperture 140 cover 142 outer annular edge 144 Front end 146 rear end 148 outer surface 150 inner surface 152 hole
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